87645620

素因数分解:

$2^2\times 5^1\times {\mathrm{4382281}}^1$

素因数の和:4382290

約数の個数: 12

約数和(自身を含む): 184055844

約数和(自身を除く): 96410224

約数列:

[1, 2, 4, 5, 10, 20, 4382281, 8764562, 17529124, 21911405, 43822810, 87645620]

約数ペア:

[(1, 87645620), (2, 43822810), (4, 21911405), (5, 17529124), (10, 8764562), (20, 4382281)]