25388420

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{6379}}^1$

素因数の和:6587

約数の個数: 24

約数和(自身を含む): 53592000

約数和(自身を除く): 28203580

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 6379, 12758, 25516, 31895, 63790, 127580, 1269421, 2538842, 5077684, 6347105, 12694210, 25388420]

約数ペア:

[(1, 25388420), (2, 12694210), (4, 6347105), (5, 5077684), (10, 2538842), (20, 1269421), (199, 127580), (398, 63790), (796, 31895), (995, 25516), (1990, 12758), (3980, 6379)]