87990215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{2531}}^1$

素因数の和:2962

約数の個数: 16

約数和(自身を含む): 112116960

約数和(自身を除く): 24126745

約数列:

[1, 5, 17, 85, 409, 2045, 2531, 6953, 12655, 34765, 43027, 215135, 1035179, 5175895, 17598043, 87990215]

約数ペア:

[(1, 87990215), (5, 17598043), (17, 5175895), (85, 1035179), (409, 215135), (2045, 43027), (2531, 34765), (6953, 12655)]