811340

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{359}}^1$

素因数の和:481

約数の個数: 24

約数和(自身を含む): 1723680

約数和(自身を除く): 912340

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 359, 452, 565, 718, 1130, 1436, 1795, 2260, 3590, 7180, 40567, 81134, 162268, 202835, 405670, 811340]

約数ペア:

[(1, 811340), (2, 405670), (4, 202835), (5, 162268), (10, 81134), (20, 40567), (113, 7180), (226, 3590), (359, 2260), (452, 1795), (565, 1436), (718, 1130)]