25818220

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{5023}}^1$

素因数の和:5289

約数の個数: 24

約数和(自身を含む): 54440064

約数和(自身を除く): 28621844

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5023, 5140, 10046, 20092, 25115, 50230, 100460, 1290911, 2581822, 5163644, 6454555, 12909110, 25818220]

約数ペア:

[(1, 25818220), (2, 12909110), (4, 6454555), (5, 5163644), (10, 2581822), (20, 1290911), (257, 100460), (514, 50230), (1028, 25115), (1285, 20092), (2570, 10046), (5023, 5140)]