399044960

素因数分解:

$2^5\times 5^1\times {\mathrm{2494031}}^1$

素因数の和:2494046

約数の個数: 24

約数和(自身を含む): 942744096

約数和(自身を除く): 543699136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 2494031, 4988062, 9976124, 12470155, 19952248, 24940310, 39904496, 49880620, 79808992, 99761240, 199522480, 399044960]

約数ペア:

[(1, 399044960), (2, 199522480), (4, 99761240), (5, 79808992), (8, 49880620), (10, 39904496), (16, 24940310), (20, 19952248), (32, 12470155), (40, 9976124), (80, 4988062), (160, 2494031)]