71139080

素因数分解:

$2^3\times 5^1\times {\mathrm{1778477}}^1$

素因数の和:1778488

約数の個数: 16

約数和(自身を含む): 160063020

約数和(自身を除く): 88923940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1778477, 3556954, 7113908, 8892385, 14227816, 17784770, 35569540, 71139080]

約数ペア:

[(1, 71139080), (2, 35569540), (4, 17784770), (5, 14227816), (8, 8892385), (10, 7113908), (20, 3556954), (40, 1778477)]