40991240

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{6287}}^1$

素因数の和:6461

約数の個数: 32

約数和(自身を含む): 92810880

約数和(自身を除く): 51819640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6287, 6520, 12574, 25148, 31435, 50296, 62870, 125740, 251480, 1024781, 2049562, 4099124, 5123905, 8198248, 10247810, 20495620, 40991240]

約数ペア:

[(1, 40991240), (2, 20495620), (4, 10247810), (5, 8198248), (8, 5123905), (10, 4099124), (20, 2049562), (40, 1024781), (163, 251480), (326, 125740), (652, 62870), (815, 50296), (1304, 31435), (1630, 25148), (3260, 12574), (6287, 6520)]