16617640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31957}}^1$

素因数の和:31981

約数の個数: 32

約数和(自身を含む): 40267080

約数和(自身を除く): 23649440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 31957, 63914, 127828, 159785, 255656, 319570, 415441, 639140, 830882, 1278280, 1661764, 2077205, 3323528, 4154410, 8308820, 16617640]

約数ペア:

[(1, 16617640), (2, 8308820), (4, 4154410), (5, 3323528), (8, 2077205), (10, 1661764), (13, 1278280), (20, 830882), (26, 639140), (40, 415441), (52, 319570), (65, 255656), (104, 159785), (130, 127828), (260, 63914), (520, 31957)]