25560440

素因数分解:

$2^3\times 5^1\times {\mathrm{639011}}^1$

素因数の和:639022

約数の個数: 16

約数和(自身を含む): 57511080

約数和(自身を除く): 31950640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 639011, 1278022, 2556044, 3195055, 5112088, 6390110, 12780220, 25560440]

約数ペア:

[(1, 25560440), (2, 12780220), (4, 6390110), (5, 5112088), (8, 3195055), (10, 2556044), (20, 1278022), (40, 639011)]