768820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2957}}^1$

素因数の和:2979

約数の個数: 24

約数和(自身を含む): 1739304

約数和(自身を除く): 970484

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 2957, 5914, 11828, 14785, 29570, 38441, 59140, 76882, 153764, 192205, 384410, 768820]

約数ペア:

[(1, 768820), (2, 384410), (4, 192205), (5, 153764), (10, 76882), (13, 59140), (20, 38441), (26, 29570), (52, 14785), (65, 11828), (130, 5914), (260, 2957)]