8040125

素因数分解:

$5^3\times {\mathrm{131}}^1\times {\mathrm{491}}^1$

素因数の和:637

約数の個数: 16

約数和(自身を含む): 10131264

約数和(自身を除く): 2091139

約数列:

[1, 5, 25, 125, 131, 491, 655, 2455, 3275, 12275, 16375, 61375, 64321, 321605, 1608025, 8040125]

約数ペア:

[(1, 8040125), (5, 1608025), (25, 321605), (125, 64321), (131, 61375), (491, 16375), (655, 12275), (2455, 3275)]