81070520

素因数分解:

$2^3\times 5^1\times {\mathrm{2026763}}^1$

素因数の和:2026774

約数の個数: 16

約数和(自身を含む): 182408760

約数和(自身を除く): 101338240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2026763, 4053526, 8107052, 10133815, 16214104, 20267630, 40535260, 81070520]

約数ペア:

[(1, 81070520), (2, 40535260), (4, 20267630), (5, 16214104), (8, 10133815), (10, 8107052), (20, 4053526), (40, 2026763)]