8581220

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{3797}}^1$

素因数の和:3919

約数の個数: 24

約数和(自身を含む): 18184824

約数和(自身を除く): 9603604

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 3797, 7594, 15188, 18985, 37970, 75940, 429061, 858122, 1716244, 2145305, 4290610, 8581220]

約数ペア:

[(1, 8581220), (2, 4290610), (4, 2145305), (5, 1716244), (10, 858122), (20, 429061), (113, 75940), (226, 37970), (452, 18985), (565, 15188), (1130, 7594), (2260, 3797)]