71860220

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{25849}}^1$

素因数の和:25997

約数の個数: 24

約数和(自身を含む): 151998000

約数和(自身を除く): 80137780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 25849, 51698, 103396, 129245, 258490, 516980, 3593011, 7186022, 14372044, 17965055, 35930110, 71860220]

約数ペア:

[(1, 71860220), (2, 35930110), (4, 17965055), (5, 14372044), (10, 7186022), (20, 3593011), (139, 516980), (278, 258490), (556, 129245), (695, 103396), (1390, 51698), (2780, 25849)]