9988540

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3593}}^1$

素因数の和:3741

約数の個数: 24

約数和(自身を含む): 21132720

約数和(自身を除く): 11144180

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 3593, 7186, 14372, 17965, 35930, 71860, 499427, 998854, 1997708, 2497135, 4994270, 9988540]

約数ペア:

[(1, 9988540), (2, 4994270), (4, 2497135), (5, 1997708), (10, 998854), (20, 499427), (139, 71860), (278, 35930), (556, 17965), (695, 14372), (1390, 7186), (2780, 3593)]