25126280

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4001}}^1$

素因数の和:4169

約数の個数: 32

約数和(自身を含む): 56908440

約数和(自身を除く): 31782160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 4001, 6280, 8002, 16004, 20005, 32008, 40010, 80020, 160040, 628157, 1256314, 2512628, 3140785, 5025256, 6281570, 12563140, 25126280]

約数ペア:

[(1, 25126280), (2, 12563140), (4, 6281570), (5, 5025256), (8, 3140785), (10, 2512628), (20, 1256314), (40, 628157), (157, 160040), (314, 80020), (628, 40010), (785, 32008), (1256, 20005), (1570, 16004), (3140, 8002), (4001, 6280)]