81037875

素因数分解:

$3^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{6971}}^1$

素因数の和:7020

約数の個数: 32

約数和(自身を含む): 139216896

約数和(自身を除く): 58179021

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 125, 155, 375, 465, 775, 2325, 3875, 6971, 11625, 20913, 34855, 104565, 174275, 216101, 522825, 648303, 871375, 1080505, 2614125, 3241515, 5402525, 16207575, 27012625, 81037875]

約数ペア:

[(1, 81037875), (3, 27012625), (5, 16207575), (15, 5402525), (25, 3241515), (31, 2614125), (75, 1080505), (93, 871375), (125, 648303), (155, 522825), (375, 216101), (465, 174275), (775, 104565), (2325, 34855), (3875, 20913), (6971, 11625)]