90865240

素因数分解:

$2^3\times 5^1\times {\mathrm{1063}}^1\times {\mathrm{2137}}^1$

素因数の和:3211

約数の個数: 32

約数和(自身を含む): 204734880

約数和(自身を除く): 113869640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1063, 2126, 2137, 4252, 4274, 5315, 8504, 8548, 10630, 10685, 17096, 21260, 21370, 42520, 42740, 85480, 2271631, 4543262, 9086524, 11358155, 18173048, 22716310, 45432620, 90865240]

約数ペア:

[(1, 90865240), (2, 45432620), (4, 22716310), (5, 18173048), (8, 11358155), (10, 9086524), (20, 4543262), (40, 2271631), (1063, 85480), (2126, 42740), (2137, 42520), (4252, 21370), (4274, 21260), (5315, 17096), (8504, 10685), (8548, 10630)]