285129080

素因数分解:

$2^3\times 5^1\times {\mathrm{7128227}}^1$

素因数の和:7128238

約数の個数: 16

約数和(自身を含む): 641540520

約数和(自身を除く): 356411440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 7128227, 14256454, 28512908, 35641135, 57025816, 71282270, 142564540, 285129080]

約数ペア:

[(1, 285129080), (2, 142564540), (4, 71282270), (5, 57025816), (8, 35641135), (10, 28512908), (20, 14256454), (40, 7128227)]