8420025

素因数分解:

$3^1\times 5^2\times {\mathrm{131}}^1\times {\mathrm{857}}^1$

素因数の和:1001

約数の個数: 24

約数和(自身を含む): 14043744

約数和(自身を除く): 5623719

約数列:

[1, 3, 5, 15, 25, 75, 131, 393, 655, 857, 1965, 2571, 3275, 4285, 9825, 12855, 21425, 64275, 112267, 336801, 561335, 1684005, 2806675, 8420025]

約数ペア:

[(1, 8420025), (3, 2806675), (5, 1684005), (15, 561335), (25, 336801), (75, 112267), (131, 64275), (393, 21425), (655, 12855), (857, 9825), (1965, 4285), (2571, 3275)]