20318288640

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{131}}^1\times {\mathrm{239}}^1$

素因数の和:420

約数の個数: 432

約数和(自身を含む): 71099804160

約数和(自身を除く): 50781515520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 131, 156, 160, 169, 192, 195, 208, 239, 240, 256, 260, 262, 312, 320, 338, 384, 390, 393, 416, 478, 480, 507, 520, 524, 624, 640, 655, 676, 717, 768, 780, 786, 832, 845, 956, 960, 1014, 1040, 1048, 1195, 1248, 1280, 1310, 1352, 1434, 1560, 1572, 1664, 1690, 1703, 1912, 1920, 1965, 2028, 2080, 2096, 2390, 2496, 2535, 2620, 2704, 2868, 3107, 3120, 3144, 3328, 3380, 3406, 3585, 3824, 3840, 3930, 4056, 4160, 4192, 4780, 4992, 5070, 5109, 5240, 5408, 5736, 6214, 6240, 6288, 6760, 6812, 7170, 7648, 7860, 8112, 8320, 8384, 8515, 9321, 9560, 9984, 10140, 10218, 10480, 10816, 11472, 12428, 12480, 12576, 13520, 13624, 14340, 15296, 15535, 15720, 16224, 16640, 16768, 17030, 18642, 19120, 20280, 20436, 20960, 21632, 22139, 22944, 24856, 24960, 25152, 25545, 27040, 27248, 28680, 30592, 31070, 31309, 31440, 32448, 33536, 34060, 37284, 38240, 40391, 40560, 40872, 41920, 43264, 44278, 45888, 46605, 49712, 49920, 50304, 51090, 54080, 54496, 57360, 61184, 62140, 62618, 62880, 64896, 66417, 68120, 74568, 76480, 80782, 81120, 81744, 83840, 88556, 91776, 93210, 93927, 99424, 100608, 102180, 108160, 108992, 110695, 114720, 121173, 124280, 125236, 125760, 129792, 132834, 136240, 149136, 152960, 156545, 161564, 162240, 163488, 167680, 177112, 183552, 186420, 187854, 198848, 201955, 204360, 216320, 217984, 221390, 229440, 242346, 248560, 250472, 251520, 265668, 272480, 298272, 305920, 313090, 323128, 324480, 326976, 332085, 354224, 372840, 375708, 397696, 403910, 407017, 408720, 435968, 442780, 458880, 469635, 484692, 497120, 500944, 503040, 531336, 544960, 596544, 605865, 626180, 646256, 648960, 653952, 664170, 708448, 745680, 751416, 795392, 807820, 814034, 817440, 885560, 917760, 939270, 969384, 994240, 1001888, 1062672, 1089920, 1193088, 1211730, 1221051, 1252360, 1292512, 1307904, 1328340, 1416896, 1491360, 1502832, 1615640, 1628068, 1634880, 1771120, 1878540, 1938768, 1988480, 2003776, 2035085, 2125344, 2179840, 2386176, 2423460, 2442102, 2504720, 2585024, 2656680, 2833792, 2982720, 3005664, 3231280, 3256136, 3269760, 3542240, 3757080, 3877536, 3976960, 4007552, 4070170, 4250688, 4846920, 4884204, 5009440, 5170048, 5291221, 5313360, 5667584, 5965440, 6011328, 6105255, 6462560, 6512272, 6539520, 7084480, 7514160, 7755072, 8015104, 8140340, 8501376, 9693840, 9768408, 10018880, 10340096, 10582442, 10626720, 11930880, 12022656, 12210510, 12925120, 13024544, 14168960, 15028320, 15510144, 15873663, 16280680, 17002752, 19387680, 19536816, 20037760, 21164884, 21253440, 24045312, 24421020, 25850240, 26049088, 26456105, 28337920, 30056640, 31020288, 31747326, 32561360, 38775360, 39073632, 40075520, 42329768, 42506880, 48842040, 51700480, 52098176, 52912210, 60113280, 63494652, 65122720, 77550720, 78147264, 79368315, 84659536, 85013760, 97684080, 104196352, 105824420, 120226560, 126989304, 130245440, 155101440, 156294528, 158736630, 169319072, 195368160, 211648840, 253978608, 260490880, 312589056, 317473260, 338638144, 390736320, 423297680, 507957216, 520981760, 634946520, 677276288, 781472640, 846595360, 1015914432, 1269893040, 1354552576, 1562945280, 1693190720, 2031828864, 2539786080, 3386381440, 4063657728, 5079572160, 6772762880, 10159144320, 20318288640]

約数ペア:

[(1, 20318288640), (2, 10159144320), (3, 6772762880), (4, 5079572160), (5, 4063657728), (6, 3386381440), (8, 2539786080), (10, 2031828864), (12, 1693190720), (13, 1562945280), (15, 1354552576), (16, 1269893040), (20, 1015914432), (24, 846595360), (26, 781472640), (30, 677276288), (32, 634946520), (39, 520981760), (40, 507957216), (48, 423297680), (52, 390736320), (60, 338638144), (64, 317473260), (65, 312589056), (78, 260490880), (80, 253978608), (96, 211648840), (104, 195368160), (120, 169319072), (128, 158736630), (130, 156294528), (131, 155101440), (156, 130245440), (160, 126989304), (169, 120226560), (192, 105824420), (195, 104196352), (208, 97684080), (239, 85013760), (240, 84659536), (256, 79368315), (260, 78147264), (262, 77550720), (312, 65122720), (320, 63494652), (338, 60113280), (384, 52912210), (390, 52098176), (393, 51700480), (416, 48842040), (478, 42506880), (480, 42329768), (507, 40075520), (520, 39073632), (524, 38775360), (624, 32561360), (640, 31747326), (655, 31020288), (676, 30056640), (717, 28337920), (768, 26456105), (780, 26049088), (786, 25850240), (832, 24421020), (845, 24045312), (956, 21253440), (960, 21164884), (1014, 20037760), (1040, 19536816), (1048, 19387680), (1195, 17002752), (1248, 16280680), (1280, 15873663), (1310, 15510144), (1352, 15028320), (1434, 14168960), (1560, 13024544), (1572, 12925120), (1664, 12210510), (1690, 12022656), (1703, 11930880), (1912, 10626720), (1920, 10582442), (1965, 10340096), (2028, 10018880), (2080, 9768408), (2096, 9693840), (2390, 8501376), (2496, 8140340), (2535, 8015104), (2620, 7755072), (2704, 7514160), (2868, 7084480), (3107, 6539520), (3120, 6512272), (3144, 6462560), (3328, 6105255), (3380, 6011328), (3406, 5965440), (3585, 5667584), (3824, 5313360), (3840, 5291221), (3930, 5170048), (4056, 5009440), (4160, 4884204), (4192, 4846920), (4780, 4250688), (4992, 4070170), (5070, 4007552), (5109, 3976960), (5240, 3877536), (5408, 3757080), (5736, 3542240), (6214, 3269760), (6240, 3256136), (6288, 3231280), (6760, 3005664), (6812, 2982720), (7170, 2833792), (7648, 2656680), (7860, 2585024), (8112, 2504720), (8320, 2442102), (8384, 2423460), (8515, 2386176), (9321, 2179840), (9560, 2125344), (9984, 2035085), (10140, 2003776), (10218, 1988480), (10480, 1938768), (10816, 1878540), (11472, 1771120), (12428, 1634880), (12480, 1628068), (12576, 1615640), (13520, 1502832), (13624, 1491360), (14340, 1416896), (15296, 1328340), (15535, 1307904), (15720, 1292512), (16224, 1252360), (16640, 1221051), (16768, 1211730), (17030, 1193088), (18642, 1089920), (19120, 1062672), (20280, 1001888), (20436, 994240), (20960, 969384), (21632, 939270), (22139, 917760), (22944, 885560), (24856, 817440), (24960, 814034), (25152, 807820), (25545, 795392), (27040, 751416), (27248, 745680), (28680, 708448), (30592, 664170), (31070, 653952), (31309, 648960), (31440, 646256), (32448, 626180), (33536, 605865), (34060, 596544), (37284, 544960), (38240, 531336), (40391, 503040), (40560, 500944), (40872, 497120), (41920, 484692), (43264, 469635), (44278, 458880), (45888, 442780), (46605, 435968), (49712, 408720), (49920, 407017), (50304, 403910), (51090, 397696), (54080, 375708), (54496, 372840), (57360, 354224), (61184, 332085), (62140, 326976), (62618, 324480), (62880, 323128), (64896, 313090), (66417, 305920), (68120, 298272), (74568, 272480), (76480, 265668), (80782, 251520), (81120, 250472), (81744, 248560), (83840, 242346), (88556, 229440), (91776, 221390), (93210, 217984), (93927, 216320), (99424, 204360), (100608, 201955), (102180, 198848), (108160, 187854), (108992, 186420), (110695, 183552), (114720, 177112), (121173, 167680), (124280, 163488), (125236, 162240), (125760, 161564), (129792, 156545), (132834, 152960), (136240, 149136)]