8880400

素因数分解:

$2^4\times 5^2\times {\mathrm{149}}^2$

素因数の和:316

約数の個数: 45

約数和(自身を含む): 21479311

約数和(自身を除く): 12598911

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 149, 200, 298, 400, 596, 745, 1192, 1490, 2384, 2980, 3725, 5960, 7450, 11920, 14900, 22201, 29800, 44402, 59600, 88804, 111005, 177608, 222010, 355216, 444020, 555025, 888040, 1110050, 1776080, 2220100, 4440200, 8880400]

約数ペア:

[(1, 8880400), (2, 4440200), (4, 2220100), (5, 1776080), (8, 1110050), (10, 888040), (16, 555025), (20, 444020), (25, 355216), (40, 222010), (50, 177608), (80, 111005), (100, 88804), (149, 59600), (200, 44402), (298, 29800), (400, 22201), (596, 14900), (745, 11920), (1192, 7450), (1490, 5960), (2384, 3725)]