9880491080

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{389}}^1\times {\mathrm{11981}}^1$

素因数の和:12434

約数の個数: 64

約数和(自身を含む): 22710682800

約数和(自身を除く): 12830191720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 389, 424, 530, 778, 1060, 1556, 1945, 2120, 3112, 3890, 7780, 11981, 15560, 20617, 23962, 41234, 47924, 59905, 82468, 95848, 103085, 119810, 164936, 206170, 239620, 412340, 479240, 634993, 824680, 1269986, 2539972, 3174965, 4660609, 5079944, 6349930, 9321218, 12699860, 18642436, 23303045, 25399720, 37284872, 46606090, 93212180, 186424360, 247012277, 494024554, 988049108, 1235061385, 1976098216, 2470122770, 4940245540, 9880491080]

約数ペア:

[(1, 9880491080), (2, 4940245540), (4, 2470122770), (5, 1976098216), (8, 1235061385), (10, 988049108), (20, 494024554), (40, 247012277), (53, 186424360), (106, 93212180), (212, 46606090), (265, 37284872), (389, 25399720), (424, 23303045), (530, 18642436), (778, 12699860), (1060, 9321218), (1556, 6349930), (1945, 5079944), (2120, 4660609), (3112, 3174965), (3890, 2539972), (7780, 1269986), (11981, 824680), (15560, 634993), (20617, 479240), (23962, 412340), (41234, 239620), (47924, 206170), (59905, 164936), (82468, 119810), (95848, 103085)]