11556640

素因数分解:

$2^5\times 5^1\times {\mathrm{72229}}^1$

素因数の和:72244

約数の個数: 24

約数和(自身を含む): 27302940

約数和(自身を除く): 15746300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 72229, 144458, 288916, 361145, 577832, 722290, 1155664, 1444580, 2311328, 2889160, 5778320, 11556640]

約数ペア:

[(1, 11556640), (2, 5778320), (4, 2889160), (5, 2311328), (8, 1444580), (10, 1155664), (16, 722290), (20, 577832), (32, 361145), (40, 288916), (80, 144458), (160, 72229)]