72761620

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{5623}}^1$

素因数の和:6279

約数の個数: 24

約数和(自身を含む): 153062784

約数和(自身を除く): 80301164

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 2588, 3235, 5623, 6470, 11246, 12940, 22492, 28115, 56230, 112460, 3638081, 7276162, 14552324, 18190405, 36380810, 72761620]

約数ペア:

[(1, 72761620), (2, 36380810), (4, 18190405), (5, 14552324), (10, 7276162), (20, 3638081), (647, 112460), (1294, 56230), (2588, 28115), (3235, 22492), (5623, 12940), (6470, 11246)]