16461640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31657}}^1$

素因数の和:31681

約数の個数: 32

約数和(自身を含む): 39889080

約数和(自身を除く): 23427440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 31657, 63314, 126628, 158285, 253256, 316570, 411541, 633140, 823082, 1266280, 1646164, 2057705, 3292328, 4115410, 8230820, 16461640]

約数ペア:

[(1, 16461640), (2, 8230820), (4, 4115410), (5, 3292328), (8, 2057705), (10, 1646164), (13, 1266280), (20, 823082), (26, 633140), (40, 411541), (52, 316570), (65, 253256), (104, 158285), (130, 126628), (260, 63314), (520, 31657)]