87866740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{337949}}^1$

素因数の和:337971

約数の個数: 24

約数和(自身を含む): 198714600

約数和(自身を除く): 110847860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 337949, 675898, 1351796, 1689745, 3379490, 4393337, 6758980, 8786674, 17573348, 21966685, 43933370, 87866740]

約数ペア:

[(1, 87866740), (2, 43933370), (4, 21966685), (5, 17573348), (10, 8786674), (13, 6758980), (20, 4393337), (26, 3379490), (52, 1689745), (65, 1351796), (130, 675898), (260, 337949)]