72641620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{84467}}^1$

素因数の和:84519

約数の個数: 24

約数和(自身を含む): 156096864

約数和(自身を除く): 83455244

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 84467, 168934, 337868, 422335, 844670, 1689340, 3632081, 7264162, 14528324, 18160405, 36320810, 72641620]

約数ペア:

[(1, 72641620), (2, 36320810), (4, 18160405), (5, 14528324), (10, 7264162), (20, 3632081), (43, 1689340), (86, 844670), (172, 422335), (215, 337868), (430, 168934), (860, 84467)]