1537640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2957}}^1$

素因数の和:2981

約数の個数: 32

約数和(自身を含む): 3727080

約数和(自身を除く): 2189440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 2957, 5914, 11828, 14785, 23656, 29570, 38441, 59140, 76882, 118280, 153764, 192205, 307528, 384410, 768820, 1537640]

約数ペア:

[(1, 1537640), (2, 768820), (4, 384410), (5, 307528), (8, 192205), (10, 153764), (13, 118280), (20, 76882), (26, 59140), (40, 38441), (52, 29570), (65, 23656), (104, 14785), (130, 11828), (260, 5914), (520, 2957)]