8308820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31957}}^1$

素因数の和:31979

約数の個数: 24

約数和(自身を含む): 18791304

約数和(自身を除く): 10482484

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 31957, 63914, 127828, 159785, 319570, 415441, 639140, 830882, 1661764, 2077205, 4154410, 8308820]

約数ペア:

[(1, 8308820), (2, 4154410), (4, 2077205), (5, 1661764), (10, 830882), (13, 639140), (20, 415441), (26, 319570), (52, 159785), (65, 127828), (130, 63914), (260, 31957)]