128520580

素因数分解:

$2^2\times 5^1\times {\mathrm{2521}}^1\times {\mathrm{2549}}^1$

素因数の和:5079

約数の個数: 24

約数和(自身を含む): 270106200

約数和(自身を除く): 141585620

約数列:

[1, 2, 4, 5, 10, 20, 2521, 2549, 5042, 5098, 10084, 10196, 12605, 12745, 25210, 25490, 50420, 50980, 6426029, 12852058, 25704116, 32130145, 64260290, 128520580]

約数ペア:

[(1, 128520580), (2, 64260290), (4, 32130145), (5, 25704116), (10, 12852058), (20, 6426029), (2521, 50980), (2549, 50420), (5042, 25490), (5098, 25210), (10084, 12745), (10196, 12605)]