15963740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{4723}}^1$

素因数の和:4758

約数の個数: 36

約数和(自身を含む): 36308664

約数和(自身を除く): 20344924

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 4723, 9446, 18892, 23615, 47230, 61399, 94460, 122798, 245596, 306995, 613990, 798187, 1227980, 1596374, 3192748, 3990935, 7981870, 15963740]

約数ペア:

[(1, 15963740), (2, 7981870), (4, 3990935), (5, 3192748), (10, 1596374), (13, 1227980), (20, 798187), (26, 613990), (52, 306995), (65, 245596), (130, 122798), (169, 94460), (260, 61399), (338, 47230), (676, 23615), (845, 18892), (1690, 9446), (3380, 4723)]