81149825

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{419}}^1$

素因数の和:617

約数の個数: 24

約数和(自身を含む): 103326720

約数和(自身を除く): 22176895

約数列:

[1, 5, 25, 61, 127, 305, 419, 635, 1525, 2095, 3175, 7747, 10475, 25559, 38735, 53213, 127795, 193675, 266065, 638975, 1330325, 3245993, 16229965, 81149825]

約数ペア:

[(1, 81149825), (5, 16229965), (25, 3245993), (61, 1330325), (127, 638975), (305, 266065), (419, 193675), (635, 127795), (1525, 53213), (2095, 38735), (3175, 25559), (7747, 10475)]