83380840

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{4001}}^1$

素因数の和:4533

約数の個数: 32

約数和(自身を含む): 188013960

約数和(自身を除く): 104633120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 2084, 2605, 4001, 4168, 5210, 8002, 10420, 16004, 20005, 20840, 32008, 40010, 80020, 160040, 2084521, 4169042, 8338084, 10422605, 16676168, 20845210, 41690420, 83380840]

約数ペア:

[(1, 83380840), (2, 41690420), (4, 20845210), (5, 16676168), (8, 10422605), (10, 8338084), (20, 4169042), (40, 2084521), (521, 160040), (1042, 80020), (2084, 40010), (2605, 32008), (4001, 20840), (4168, 20005), (5210, 16004), (8002, 10420)]