781867840

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{6481}}^1$

素因数の和:6540

約数の個数: 112

約数和(自身を含む): 2074499280

約数和(自身を除く): 1292631440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 32, 40, 52, 58, 64, 65, 80, 104, 116, 130, 145, 160, 208, 232, 260, 290, 320, 377, 416, 464, 520, 580, 754, 832, 928, 1040, 1160, 1508, 1856, 1885, 2080, 2320, 3016, 3770, 4160, 4640, 6032, 6481, 7540, 9280, 12064, 12962, 15080, 24128, 25924, 30160, 32405, 51848, 60320, 64810, 84253, 103696, 120640, 129620, 168506, 187949, 207392, 259240, 337012, 375898, 414784, 421265, 518480, 674024, 751796, 842530, 939745, 1036960, 1348048, 1503592, 1685060, 1879490, 2073920, 2443337, 2696096, 3007184, 3370120, 3758980, 4886674, 5392192, 6014368, 6740240, 7517960, 9773348, 12028736, 12216685, 13480480, 15035920, 19546696, 24433370, 26960960, 30071840, 39093392, 48866740, 60143680, 78186784, 97733480, 156373568, 195466960, 390933920, 781867840]

約数ペア:

[(1, 781867840), (2, 390933920), (4, 195466960), (5, 156373568), (8, 97733480), (10, 78186784), (13, 60143680), (16, 48866740), (20, 39093392), (26, 30071840), (29, 26960960), (32, 24433370), (40, 19546696), (52, 15035920), (58, 13480480), (64, 12216685), (65, 12028736), (80, 9773348), (104, 7517960), (116, 6740240), (130, 6014368), (145, 5392192), (160, 4886674), (208, 3758980), (232, 3370120), (260, 3007184), (290, 2696096), (320, 2443337), (377, 2073920), (416, 1879490), (464, 1685060), (520, 1503592), (580, 1348048), (754, 1036960), (832, 939745), (928, 842530), (1040, 751796), (1160, 674024), (1508, 518480), (1856, 421265), (1885, 414784), (2080, 375898), (2320, 337012), (3016, 259240), (3770, 207392), (4160, 187949), (4640, 168506), (6032, 129620), (6481, 120640), (7540, 103696), (9280, 84253), (12064, 64810), (12962, 60320), (15080, 51848), (24128, 32405), (25924, 30160)]