855423740

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{5521}}^1$

素因数の和:5718

約数の個数: 48

約数和(自身を含む): 1840548864

約数和(自身を除く): 985125124

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 127, 244, 254, 305, 508, 610, 635, 1220, 1270, 2540, 5521, 7747, 11042, 15494, 22084, 27605, 30988, 38735, 55210, 77470, 110420, 154940, 336781, 673562, 701167, 1347124, 1402334, 1683905, 2804668, 3367810, 3505835, 6735620, 7011670, 14023340, 42771187, 85542374, 171084748, 213855935, 427711870, 855423740]

約数ペア:

[(1, 855423740), (2, 427711870), (4, 213855935), (5, 171084748), (10, 85542374), (20, 42771187), (61, 14023340), (122, 7011670), (127, 6735620), (244, 3505835), (254, 3367810), (305, 2804668), (508, 1683905), (610, 1402334), (635, 1347124), (1220, 701167), (1270, 673562), (2540, 336781), (5521, 154940), (7747, 110420), (11042, 77470), (15494, 55210), (22084, 38735), (27605, 30988)]