420916640

素因数分解:

$2^5\times 5^1\times {\mathrm{2630729}}^1$

素因数の和:2630744

約数の個数: 24

約数和(自身を含む): 994415940

約数和(自身を除く): 573499300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 2630729, 5261458, 10522916, 13153645, 21045832, 26307290, 42091664, 52614580, 84183328, 105229160, 210458320, 420916640]

約数ペア:

[(1, 420916640), (2, 210458320), (4, 105229160), (5, 84183328), (8, 52614580), (10, 42091664), (16, 26307290), (20, 21045832), (32, 13153645), (40, 10522916), (80, 5261458), (160, 2630729)]