78996640

素因数分解:

$2^5\times 5^1\times {\mathrm{493729}}^1$

素因数の和:493744

約数の個数: 24

約数和(自身を含む): 186629940

約数和(自身を除く): 107633300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 493729, 987458, 1974916, 2468645, 3949832, 4937290, 7899664, 9874580, 15799328, 19749160, 39498320, 78996640]

約数ペア:

[(1, 78996640), (2, 39498320), (4, 19749160), (5, 15799328), (8, 9874580), (10, 7899664), (16, 4937290), (20, 3949832), (32, 2468645), (40, 1974916), (80, 987458), (160, 493729)]