20210122920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{2111}}^1$

素因数の和:2193

約数の個数: 384

約数和(自身を含む): 72999843840

約数和(自身を除く): 52789720920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 17, 19, 20, 24, 26, 30, 34, 38, 39, 40, 51, 52, 57, 60, 65, 68, 76, 78, 85, 95, 102, 104, 114, 120, 130, 136, 152, 156, 170, 190, 195, 204, 221, 228, 247, 255, 260, 285, 312, 323, 340, 361, 380, 390, 408, 442, 456, 494, 510, 520, 570, 646, 663, 680, 722, 741, 760, 780, 884, 969, 988, 1020, 1083, 1105, 1140, 1235, 1292, 1326, 1444, 1482, 1560, 1615, 1768, 1805, 1938, 1976, 2040, 2111, 2166, 2210, 2280, 2470, 2584, 2652, 2888, 2964, 3230, 3315, 3610, 3705, 3876, 4199, 4222, 4332, 4420, 4693, 4845, 4940, 5304, 5415, 5928, 6137, 6333, 6460, 6630, 7220, 7410, 7752, 8398, 8444, 8664, 8840, 9386, 9690, 9880, 10555, 10830, 12274, 12597, 12666, 12920, 13260, 14079, 14440, 14820, 16796, 16888, 18411, 18772, 19380, 20995, 21110, 21660, 23465, 24548, 25194, 25332, 26520, 27443, 28158, 29640, 30685, 31665, 33592, 35887, 36822, 37544, 38760, 40109, 41990, 42220, 43320, 46930, 49096, 50388, 50664, 54886, 56316, 61370, 62985, 63330, 70395, 71774, 73644, 79781, 80218, 82329, 83980, 84440, 92055, 93860, 100776, 107661, 109772, 112632, 120327, 122740, 125970, 126660, 137215, 140790, 143548, 147288, 159562, 160436, 164658, 167960, 179435, 184110, 187720, 200545, 215322, 219544, 239343, 240654, 245480, 251940, 253320, 274430, 281580, 287096, 319124, 320872, 329316, 358870, 368220, 398905, 401090, 411645, 430644, 466531, 478686, 481308, 503880, 521417, 538305, 548860, 563160, 601635, 638248, 658632, 681853, 717740, 736440, 762071, 797810, 802180, 823290, 861288, 933062, 957372, 962616, 1042834, 1076610, 1097720, 1196715, 1203270, 1363706, 1399593, 1435480, 1524142, 1564251, 1595620, 1604360, 1646580, 1866124, 1914744, 2045559, 2085668, 2153220, 2286213, 2332655, 2393430, 2406540, 2607085, 2727412, 2799186, 3048284, 3128502, 3191240, 3293160, 3409265, 3732248, 3810355, 4091118, 4171336, 4306440, 4572426, 4665310, 4786860, 4813080, 5214170, 5454824, 5598372, 6096568, 6257004, 6818530, 6997965, 7620710, 7821255, 8182236, 8864089, 9144852, 9330620, 9573720, 9906923, 10227795, 10428340, 11196744, 11431065, 12514008, 12955207, 13637060, 13995930, 15241420, 15642510, 16364472, 17728178, 18289704, 18661240, 19813846, 20455590, 20856680, 22862130, 25910414, 26592267, 27274120, 27991860, 29720769, 30482840, 31285020, 35456356, 38865621, 39627692, 40911180, 44320445, 45724260, 49534615, 51820828, 53184534, 55983720, 59441538, 62570040, 64776035, 70912712, 77731242, 79255384, 81822360, 88640890, 91448520, 99069230, 103641656, 106369068, 118883076, 129552070, 132961335, 148603845, 155462484, 168417691, 177281780, 194328105, 198138460, 212738136, 237766152, 259104140, 265922670, 297207690, 310924968, 336835382, 354563560, 388656210, 396276920, 505253073, 518208280, 531845340, 594415380, 673670764, 777312420, 842088455, 1010506146, 1063690680, 1188830760, 1347341528, 1554624840, 1684176910, 2021012292, 2526265365, 3368353820, 4042024584, 5052530730, 6736707640, 10105061460, 20210122920]

約数ペア:

[(1, 20210122920), (2, 10105061460), (3, 6736707640), (4, 5052530730), (5, 4042024584), (6, 3368353820), (8, 2526265365), (10, 2021012292), (12, 1684176910), (13, 1554624840), (15, 1347341528), (17, 1188830760), (19, 1063690680), (20, 1010506146), (24, 842088455), (26, 777312420), (30, 673670764), (34, 594415380), (38, 531845340), (39, 518208280), (40, 505253073), (51, 396276920), (52, 388656210), (57, 354563560), (60, 336835382), (65, 310924968), (68, 297207690), (76, 265922670), (78, 259104140), (85, 237766152), (95, 212738136), (102, 198138460), (104, 194328105), (114, 177281780), (120, 168417691), (130, 155462484), (136, 148603845), (152, 132961335), (156, 129552070), (170, 118883076), (190, 106369068), (195, 103641656), (204, 99069230), (221, 91448520), (228, 88640890), (247, 81822360), (255, 79255384), (260, 77731242), (285, 70912712), (312, 64776035), (323, 62570040), (340, 59441538), (361, 55983720), (380, 53184534), (390, 51820828), (408, 49534615), (442, 45724260), (456, 44320445), (494, 40911180), (510, 39627692), (520, 38865621), (570, 35456356), (646, 31285020), (663, 30482840), (680, 29720769), (722, 27991860), (741, 27274120), (760, 26592267), (780, 25910414), (884, 22862130), (969, 20856680), (988, 20455590), (1020, 19813846), (1083, 18661240), (1105, 18289704), (1140, 17728178), (1235, 16364472), (1292, 15642510), (1326, 15241420), (1444, 13995930), (1482, 13637060), (1560, 12955207), (1615, 12514008), (1768, 11431065), (1805, 11196744), (1938, 10428340), (1976, 10227795), (2040, 9906923), (2111, 9573720), (2166, 9330620), (2210, 9144852), (2280, 8864089), (2470, 8182236), (2584, 7821255), (2652, 7620710), (2888, 6997965), (2964, 6818530), (3230, 6257004), (3315, 6096568), (3610, 5598372), (3705, 5454824), (3876, 5214170), (4199, 4813080), (4222, 4786860), (4332, 4665310), (4420, 4572426), (4693, 4306440), (4845, 4171336), (4940, 4091118), (5304, 3810355), (5415, 3732248), (5928, 3409265), (6137, 3293160), (6333, 3191240), (6460, 3128502), (6630, 3048284), (7220, 2799186), (7410, 2727412), (7752, 2607085), (8398, 2406540), (8444, 2393430), (8664, 2332655), (8840, 2286213), (9386, 2153220), (9690, 2085668), (9880, 2045559), (10555, 1914744), (10830, 1866124), (12274, 1646580), (12597, 1604360), (12666, 1595620), (12920, 1564251), (13260, 1524142), (14079, 1435480), (14440, 1399593), (14820, 1363706), (16796, 1203270), (16888, 1196715), (18411, 1097720), (18772, 1076610), (19380, 1042834), (20995, 962616), (21110, 957372), (21660, 933062), (23465, 861288), (24548, 823290), (25194, 802180), (25332, 797810), (26520, 762071), (27443, 736440), (28158, 717740), (29640, 681853), (30685, 658632), (31665, 638248), (33592, 601635), (35887, 563160), (36822, 548860), (37544, 538305), (38760, 521417), (40109, 503880), (41990, 481308), (42220, 478686), (43320, 466531), (46930, 430644), (49096, 411645), (50388, 401090), (50664, 398905), (54886, 368220), (56316, 358870), (61370, 329316), (62985, 320872), (63330, 319124), (70395, 287096), (71774, 281580), (73644, 274430), (79781, 253320), (80218, 251940), (82329, 245480), (83980, 240654), (84440, 239343), (92055, 219544), (93860, 215322), (100776, 200545), (107661, 187720), (109772, 184110), (112632, 179435), (120327, 167960), (122740, 164658), (125970, 160436), (126660, 159562), (137215, 147288), (140790, 143548)]