90905240

素因数分解:

$2^3\times 5^1\times {\mathrm{2272631}}^1$

素因数の和:2272642

約数の個数: 16

約数和(自身を含む): 204536880

約数和(自身を除く): 113631640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2272631, 4545262, 9090524, 11363155, 18181048, 22726310, 45452620, 90905240]

約数ペア:

[(1, 90905240), (2, 45452620), (4, 22726310), (5, 18181048), (8, 11363155), (10, 9090524), (20, 4545262), (40, 2272631)]