71280225

素因数分解:

$3^2\times 5^2\times {\mathrm{316801}}^1$

素因数の和:316817

約数の個数: 18

約数和(自身を含む): 127671206

約数和(自身を除く): 56390981

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 316801, 950403, 1584005, 2851209, 4752015, 7920025, 14256045, 23760075, 71280225]

約数ペア:

[(1, 71280225), (3, 23760075), (5, 14256045), (9, 7920025), (15, 4752015), (25, 2851209), (45, 1584005), (75, 950403), (225, 316801)]