40072905

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{18947}}^1$

素因数の和:19005

約数の個数: 24

約数和(自身を含む): 70941312

約数和(自身を除く): 30868407

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 18947, 56841, 94735, 170523, 284205, 852615, 890509, 2671527, 4452545, 8014581, 13357635, 40072905]

約数ペア:

[(1, 40072905), (3, 13357635), (5, 8014581), (9, 4452545), (15, 2671527), (45, 890509), (47, 852615), (141, 284205), (235, 170523), (423, 94735), (705, 56841), (2115, 18947)]