72433040

素因数分解:

$2^4\times 5^1\times {\mathrm{905413}}^1$

素因数の和:905426

約数の個数: 20

約数和(自身を含む): 168407004

約数和(自身を除く): 95973964

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 905413, 1810826, 3621652, 4527065, 7243304, 9054130, 14486608, 18108260, 36216520, 72433040]

約数ペア:

[(1, 72433040), (2, 36216520), (4, 18108260), (5, 14486608), (8, 9054130), (10, 7243304), (16, 4527065), (20, 3621652), (40, 1810826), (80, 905413)]