20542781980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{1093}}^1$

素因数の和:1328

約数の個数: 192

約数和(自身を含む): 53593747200

約数和(自身を除く): 33050965220

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 53, 68, 70, 85, 106, 119, 140, 149, 170, 212, 238, 265, 298, 340, 371, 476, 530, 595, 596, 742, 745, 901, 1043, 1060, 1093, 1190, 1484, 1490, 1802, 1855, 2086, 2186, 2380, 2533, 2980, 3604, 3710, 4172, 4372, 4505, 5066, 5215, 5465, 6307, 7420, 7651, 7897, 9010, 10132, 10430, 10930, 12614, 12665, 15302, 15794, 17731, 18020, 18581, 20860, 21860, 25228, 25330, 30604, 31535, 31588, 35462, 37162, 38255, 39485, 50660, 55279, 57929, 63070, 70924, 74324, 76510, 78970, 88655, 92905, 110558, 115858, 126140, 130067, 134249, 153020, 157940, 162857, 177310, 185810, 221116, 231716, 260134, 268498, 276395, 289645, 325714, 354620, 371620, 405503, 520268, 536996, 552790, 579290, 650335, 651428, 671245, 811006, 814285, 939743, 984793, 1105580, 1139999, 1158580, 1300670, 1342490, 1622012, 1628570, 1879486, 1969586, 2027515, 2279998, 2601340, 2684980, 2768569, 3257140, 3758972, 3939172, 4055030, 4559996, 4698715, 4923965, 5537138, 5699995, 6893551, 8110060, 8631421, 9397430, 9847930, 11074276, 11399990, 13787102, 13842845, 17262842, 18794860, 19379983, 19695860, 22799980, 27574204, 27685690, 34467755, 34525684, 38759966, 43157105, 55371380, 60419947, 68935510, 77519932, 86314210, 96899915, 120839894, 137871020, 146734157, 172628420, 193799830, 241679788, 293468314, 302099735, 387599660, 586936628, 604199470, 733670785, 1027139099, 1208398940, 1467341570, 2054278198, 2934683140, 4108556396, 5135695495, 10271390990, 20542781980]

約数ペア:

[(1, 20542781980), (2, 10271390990), (4, 5135695495), (5, 4108556396), (7, 2934683140), (10, 2054278198), (14, 1467341570), (17, 1208398940), (20, 1027139099), (28, 733670785), (34, 604199470), (35, 586936628), (53, 387599660), (68, 302099735), (70, 293468314), (85, 241679788), (106, 193799830), (119, 172628420), (140, 146734157), (149, 137871020), (170, 120839894), (212, 96899915), (238, 86314210), (265, 77519932), (298, 68935510), (340, 60419947), (371, 55371380), (476, 43157105), (530, 38759966), (595, 34525684), (596, 34467755), (742, 27685690), (745, 27574204), (901, 22799980), (1043, 19695860), (1060, 19379983), (1093, 18794860), (1190, 17262842), (1484, 13842845), (1490, 13787102), (1802, 11399990), (1855, 11074276), (2086, 9847930), (2186, 9397430), (2380, 8631421), (2533, 8110060), (2980, 6893551), (3604, 5699995), (3710, 5537138), (4172, 4923965), (4372, 4698715), (4505, 4559996), (5066, 4055030), (5215, 3939172), (5465, 3758972), (6307, 3257140), (7420, 2768569), (7651, 2684980), (7897, 2601340), (9010, 2279998), (10132, 2027515), (10430, 1969586), (10930, 1879486), (12614, 1628570), (12665, 1622012), (15302, 1342490), (15794, 1300670), (17731, 1158580), (18020, 1139999), (18581, 1105580), (20860, 984793), (21860, 939743), (25228, 814285), (25330, 811006), (30604, 671245), (31535, 651428), (31588, 650335), (35462, 579290), (37162, 552790), (38255, 536996), (39485, 520268), (50660, 405503), (55279, 371620), (57929, 354620), (63070, 325714), (70924, 289645), (74324, 276395), (76510, 268498), (78970, 260134), (88655, 231716), (92905, 221116), (110558, 185810), (115858, 177310), (126140, 162857), (130067, 157940), (134249, 153020)]