30905240

素因数分解:

$2^3\times 5^1\times {\mathrm{772631}}^1$

素因数の和:772642

約数の個数: 16

約数和(自身を含む): 69536880

約数和(自身を除く): 38631640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 772631, 1545262, 3090524, 3863155, 6181048, 7726310, 15452620, 30905240]

約数ペア:

[(1, 30905240), (2, 15452620), (4, 7726310), (5, 6181048), (8, 3863155), (10, 3090524), (20, 1545262), (40, 772631)]