427104080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{499}}^1\times {\mathrm{823}}^1$

素因数の和:1348

約数の個数: 80

約数和(自身を含む): 1072848000

約数和(自身を除く): 645743920

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 499, 520, 823, 998, 1040, 1646, 1996, 2495, 3292, 3992, 4115, 4990, 6487, 6584, 7984, 8230, 9980, 10699, 12974, 13168, 16460, 19960, 21398, 25948, 32435, 32920, 39920, 42796, 51896, 53495, 64870, 65840, 85592, 103792, 106990, 129740, 171184, 213980, 259480, 410677, 427960, 518960, 821354, 855920, 1642708, 2053385, 3285416, 4106770, 5338801, 6570832, 8213540, 10677602, 16427080, 21355204, 26694005, 32854160, 42710408, 53388010, 85420816, 106776020, 213552040, 427104080]

約数ペア:

[(1, 427104080), (2, 213552040), (4, 106776020), (5, 85420816), (8, 53388010), (10, 42710408), (13, 32854160), (16, 26694005), (20, 21355204), (26, 16427080), (40, 10677602), (52, 8213540), (65, 6570832), (80, 5338801), (104, 4106770), (130, 3285416), (208, 2053385), (260, 1642708), (499, 855920), (520, 821354), (823, 518960), (998, 427960), (1040, 410677), (1646, 259480), (1996, 213980), (2495, 171184), (3292, 129740), (3992, 106990), (4115, 103792), (4990, 85592), (6487, 65840), (6584, 64870), (7984, 53495), (8230, 51896), (9980, 42796), (10699, 39920), (12974, 32920), (13168, 32435), (16460, 25948), (19960, 21398)]