68212540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{397}}^1$

素因数の和:499

約数の個数: 72

約数和(自身を含む): 160072416

約数和(自身を除く): 91859876

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 121, 142, 220, 242, 284, 355, 397, 484, 605, 710, 781, 794, 1210, 1420, 1562, 1588, 1985, 2420, 3124, 3905, 3970, 4367, 7810, 7940, 8591, 8734, 15620, 17182, 17468, 21835, 28187, 34364, 42955, 43670, 48037, 56374, 85910, 87340, 96074, 112748, 140935, 171820, 192148, 240185, 281870, 310057, 480370, 563740, 620114, 960740, 1240228, 1550285, 3100570, 3410627, 6201140, 6821254, 13642508, 17053135, 34106270, 68212540]

約数ペア:

[(1, 68212540), (2, 34106270), (4, 17053135), (5, 13642508), (10, 6821254), (11, 6201140), (20, 3410627), (22, 3100570), (44, 1550285), (55, 1240228), (71, 960740), (110, 620114), (121, 563740), (142, 480370), (220, 310057), (242, 281870), (284, 240185), (355, 192148), (397, 171820), (484, 140935), (605, 112748), (710, 96074), (781, 87340), (794, 85910), (1210, 56374), (1420, 48037), (1562, 43670), (1588, 42955), (1985, 34364), (2420, 28187), (3124, 21835), (3905, 17468), (3970, 17182), (4367, 15620), (7810, 8734), (7940, 8591)]