81508756

素因数分解:

$2^2\times 7^2\times {\mathrm{415861}}^1$

素因数の和:415879

約数の個数: 18

約数和(自身を含む): 165928938

約数和(自身を除く): 84420182

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 415861, 831722, 1663444, 2911027, 5822054, 11644108, 20377189, 40754378, 81508756]

約数ペア:

[(1, 81508756), (2, 40754378), (4, 20377189), (7, 11644108), (14, 5822054), (28, 2911027), (49, 1663444), (98, 831722), (196, 415861)]