20640802560

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:328

約数の個数: 576

約数和(自身を含む): 78004534272

約数和(自身を除く): 57363731712

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 67, 70, 73, 80, 84, 96, 105, 112, 120, 128, 134, 140, 146, 157, 160, 168, 192, 201, 210, 219, 224, 240, 256, 268, 280, 292, 314, 320, 335, 336, 365, 384, 402, 420, 438, 448, 469, 471, 480, 511, 536, 560, 584, 628, 640, 670, 672, 730, 768, 785, 804, 840, 876, 896, 938, 942, 960, 1005, 1022, 1072, 1095, 1099, 1120, 1168, 1256, 1280, 1340, 1344, 1407, 1460, 1533, 1570, 1608, 1680, 1752, 1792, 1876, 1884, 1920, 2010, 2044, 2144, 2190, 2198, 2240, 2336, 2345, 2355, 2512, 2555, 2680, 2688, 2814, 2920, 3066, 3140, 3216, 3297, 3360, 3504, 3752, 3768, 3840, 4020, 4088, 4288, 4380, 4396, 4480, 4672, 4690, 4710, 4891, 5024, 5110, 5360, 5376, 5495, 5628, 5840, 6132, 6280, 6432, 6594, 6720, 7008, 7035, 7504, 7536, 7665, 8040, 8176, 8576, 8760, 8792, 8960, 9344, 9380, 9420, 9782, 10048, 10220, 10519, 10720, 10990, 11256, 11461, 11680, 12264, 12560, 12864, 13188, 13440, 14016, 14070, 14673, 15008, 15072, 15330, 16080, 16352, 16485, 17152, 17520, 17584, 18688, 18760, 18840, 19564, 20096, 20440, 21038, 21440, 21980, 22512, 22922, 23360, 24455, 24528, 25120, 25728, 26376, 26880, 28032, 28140, 29346, 30016, 30144, 30660, 31557, 32160, 32704, 32970, 34237, 34383, 35040, 35168, 37520, 37680, 39128, 40192, 40880, 42076, 42880, 43960, 45024, 45844, 46720, 48910, 49056, 50240, 51456, 52595, 52752, 56064, 56280, 57305, 58692, 60032, 60288, 61320, 63114, 64320, 65408, 65940, 68474, 68766, 70080, 70336, 73365, 73633, 75040, 75360, 78256, 80227, 81760, 84152, 85760, 87920, 90048, 91688, 93440, 97820, 98112, 100480, 102711, 105190, 105504, 112560, 114610, 117384, 120064, 120576, 122640, 126228, 128640, 130816, 131880, 136948, 137532, 140160, 140672, 146730, 147266, 150080, 150720, 156512, 157785, 160454, 163520, 168304, 171185, 171915, 175840, 180096, 183376, 195640, 196224, 200960, 205422, 210380, 211008, 220899, 225120, 229220, 234768, 240681, 245280, 252456, 257280, 263760, 273896, 275064, 280320, 281344, 293460, 294532, 300160, 301440, 313024, 315570, 320908, 327040, 336608, 342370, 343830, 351680, 360192, 366752, 368165, 391280, 392448, 401135, 410844, 420760, 422016, 441798, 450240, 458440, 469536, 481362, 490560, 504912, 513555, 527520, 547792, 550128, 586920, 589064, 600320, 602880, 626048, 631140, 641816, 654080, 673216, 684740, 687660, 703360, 733504, 736330, 767887, 782560, 802270, 821688, 841520, 844032, 883596, 900480, 916880, 939072, 962724, 981120, 1009824, 1027110, 1055040, 1095584, 1100256, 1104495, 1173840, 1178128, 1203405, 1252096, 1262280, 1283632, 1346432, 1369480, 1375320, 1406720, 1467008, 1472660, 1535774, 1565120, 1604540, 1643376, 1683040, 1767192, 1800960, 1833760, 1878144, 1925448, 1962240, 2019648, 2054220, 2110080, 2191168, 2200512, 2208990, 2303661, 2347680, 2356256, 2406810, 2524560, 2567264, 2692864, 2738960, 2750640, 2934016, 2945320, 3071548, 3130240, 3209080, 3286752, 3366080, 3534384, 3667520, 3756288, 3839435, 3850896, 4039296, 4108440, 4220160, 4382336, 4401024, 4417980, 4607322, 4695360, 4712512, 4813620, 5049120, 5134528, 5375209, 5477920, 5501280, 5890640, 6143096, 6260480, 6418160, 6573504, 6732160, 7068768, 7335040, 7678870, 7701792, 8078592, 8216880, 8764672, 8802048, 8835960, 9214644, 9390720, 9425024, 9627240, 10098240, 10269056, 10750418, 10955840, 11002560, 11518305, 11781280, 12286192, 12836320, 13147008, 13464320, 14137536, 14670080, 15357740, 15403584, 16125627, 16433760, 17671920, 18429288, 18781440, 18850048, 19254480, 20196480, 20538112, 21500836, 21911680, 22005120, 23036610, 23562560, 24572384, 25672640, 26294016, 26876045, 28275072, 30715480, 30807168, 32251254, 32867520, 35343840, 36858576, 38508960, 40392960, 43001672, 43823360, 44010240, 46073220, 47125120, 49144768, 51345280, 53752090, 56550144, 61430960, 61614336, 64502508, 65735040, 70687680, 73717152, 77017920, 80628135, 86003344, 92146440, 94250240, 98289536, 102690560, 107504180, 122861920, 129005016, 131470080, 141375360, 147434304, 154035840, 161256270, 172006688, 184292880, 196579072, 215008360, 245723840, 258010032, 282750720, 294868608, 308071680, 322512540, 344013376, 368585760, 430016720, 491447680, 516020064, 589737216, 645025080, 688026752, 737171520, 860033440, 982895360, 1032040128, 1290050160, 1376053504, 1474343040, 1720066880, 2064080256, 2580100320, 2948686080, 3440133760, 4128160512, 5160200640, 6880267520, 10320401280, 20640802560]

約数ペア:

[(1, 20640802560), (2, 10320401280), (3, 6880267520), (4, 5160200640), (5, 4128160512), (6, 3440133760), (7, 2948686080), (8, 2580100320), (10, 2064080256), (12, 1720066880), (14, 1474343040), (15, 1376053504), (16, 1290050160), (20, 1032040128), (21, 982895360), (24, 860033440), (28, 737171520), (30, 688026752), (32, 645025080), (35, 589737216), (40, 516020064), (42, 491447680), (48, 430016720), (56, 368585760), (60, 344013376), (64, 322512540), (67, 308071680), (70, 294868608), (73, 282750720), (80, 258010032), (84, 245723840), (96, 215008360), (105, 196579072), (112, 184292880), (120, 172006688), (128, 161256270), (134, 154035840), (140, 147434304), (146, 141375360), (157, 131470080), (160, 129005016), (168, 122861920), (192, 107504180), (201, 102690560), (210, 98289536), (219, 94250240), (224, 92146440), (240, 86003344), (256, 80628135), (268, 77017920), (280, 73717152), (292, 70687680), (314, 65735040), (320, 64502508), (335, 61614336), (336, 61430960), (365, 56550144), (384, 53752090), (402, 51345280), (420, 49144768), (438, 47125120), (448, 46073220), (469, 44010240), (471, 43823360), (480, 43001672), (511, 40392960), (536, 38508960), (560, 36858576), (584, 35343840), (628, 32867520), (640, 32251254), (670, 30807168), (672, 30715480), (730, 28275072), (768, 26876045), (785, 26294016), (804, 25672640), (840, 24572384), (876, 23562560), (896, 23036610), (938, 22005120), (942, 21911680), (960, 21500836), (1005, 20538112), (1022, 20196480), (1072, 19254480), (1095, 18850048), (1099, 18781440), (1120, 18429288), (1168, 17671920), (1256, 16433760), (1280, 16125627), (1340, 15403584), (1344, 15357740), (1407, 14670080), (1460, 14137536), (1533, 13464320), (1570, 13147008), (1608, 12836320), (1680, 12286192), (1752, 11781280), (1792, 11518305), (1876, 11002560), (1884, 10955840), (1920, 10750418), (2010, 10269056), (2044, 10098240), (2144, 9627240), (2190, 9425024), (2198, 9390720), (2240, 9214644), (2336, 8835960), (2345, 8802048), (2355, 8764672), (2512, 8216880), (2555, 8078592), (2680, 7701792), (2688, 7678870), (2814, 7335040), (2920, 7068768), (3066, 6732160), (3140, 6573504), (3216, 6418160), (3297, 6260480), (3360, 6143096), (3504, 5890640), (3752, 5501280), (3768, 5477920), (3840, 5375209), (4020, 5134528), (4088, 5049120), (4288, 4813620), (4380, 4712512), (4396, 4695360), (4480, 4607322), (4672, 4417980), (4690, 4401024), (4710, 4382336), (4891, 4220160), (5024, 4108440), (5110, 4039296), (5360, 3850896), (5376, 3839435), (5495, 3756288), (5628, 3667520), (5840, 3534384), (6132, 3366080), (6280, 3286752), (6432, 3209080), (6594, 3130240), (6720, 3071548), (7008, 2945320), (7035, 2934016), (7504, 2750640), (7536, 2738960), (7665, 2692864), (8040, 2567264), (8176, 2524560), (8576, 2406810), (8760, 2356256), (8792, 2347680), (8960, 2303661), (9344, 2208990), (9380, 2200512), (9420, 2191168), (9782, 2110080), (10048, 2054220), (10220, 2019648), (10519, 1962240), (10720, 1925448), (10990, 1878144), (11256, 1833760), (11461, 1800960), (11680, 1767192), (12264, 1683040), (12560, 1643376), (12864, 1604540), (13188, 1565120), (13440, 1535774), (14016, 1472660), (14070, 1467008), (14673, 1406720), (15008, 1375320), (15072, 1369480), (15330, 1346432), (16080, 1283632), (16352, 1262280), (16485, 1252096), (17152, 1203405), (17520, 1178128), (17584, 1173840), (18688, 1104495), (18760, 1100256), (18840, 1095584), (19564, 1055040), (20096, 1027110), (20440, 1009824), (21038, 981120), (21440, 962724), (21980, 939072), (22512, 916880), (22922, 900480), (23360, 883596), (24455, 844032), (24528, 841520), (25120, 821688), (25728, 802270), (26376, 782560), (26880, 767887), (28032, 736330), (28140, 733504), (29346, 703360), (30016, 687660), (30144, 684740), (30660, 673216), (31557, 654080), (32160, 641816), (32704, 631140), (32970, 626048), (34237, 602880), (34383, 600320), (35040, 589064), (35168, 586920), (37520, 550128), (37680, 547792), (39128, 527520), (40192, 513555), (40880, 504912), (42076, 490560), (42880, 481362), (43960, 469536), (45024, 458440), (45844, 450240), (46720, 441798), (48910, 422016), (49056, 420760), (50240, 410844), (51456, 401135), (52595, 392448), (52752, 391280), (56064, 368165), (56280, 366752), (57305, 360192), (58692, 351680), (60032, 343830), (60288, 342370), (61320, 336608), (63114, 327040), (64320, 320908), (65408, 315570), (65940, 313024), (68474, 301440), (68766, 300160), (70080, 294532), (70336, 293460), (73365, 281344), (73633, 280320), (75040, 275064), (75360, 273896), (78256, 263760), (80227, 257280), (81760, 252456), (84152, 245280), (85760, 240681), (87920, 234768), (90048, 229220), (91688, 225120), (93440, 220899), (97820, 211008), (98112, 210380), (100480, 205422), (102711, 200960), (105190, 196224), (105504, 195640), (112560, 183376), (114610, 180096), (117384, 175840), (120064, 171915), (120576, 171185), (122640, 168304), (126228, 163520), (128640, 160454), (130816, 157785), (131880, 156512), (136948, 150720), (137532, 150080), (140160, 147266), (140672, 146730)]