64712740

素因数分解:

$2^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{11681}}^1$

素因数の和:11967

約数の個数: 24

約数和(自身を含む): 136399032

約数和(自身を除く): 71686292

約数列:

[1, 2, 4, 5, 10, 20, 277, 554, 1108, 1385, 2770, 5540, 11681, 23362, 46724, 58405, 116810, 233620, 3235637, 6471274, 12942548, 16178185, 32356370, 64712740]

約数ペア:

[(1, 64712740), (2, 32356370), (4, 16178185), (5, 12942548), (10, 6471274), (20, 3235637), (277, 233620), (554, 116810), (1108, 58405), (1385, 46724), (2770, 23362), (5540, 11681)]