40381240

素因数分解:

$2^3\times 5^1\times {\mathrm{1009531}}^1$

素因数の和:1009542

約数の個数: 16

約数和(自身を含む): 90857880

約数和(自身を除く): 50476640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1009531, 2019062, 4038124, 5047655, 8076248, 10095310, 20190620, 40381240]

約数ペア:

[(1, 40381240), (2, 20190620), (4, 10095310), (5, 8076248), (8, 5047655), (10, 4038124), (20, 2019062), (40, 1009531)]