28115875

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:264

約数の個数: 32

約数和(自身を含む): 37806912

約数和(自身を除く): 9691037

約数列:

[1, 5, 17, 25, 85, 101, 125, 131, 425, 505, 655, 1717, 2125, 2227, 2525, 3275, 8585, 11135, 12625, 13231, 16375, 42925, 55675, 66155, 214625, 224927, 278375, 330775, 1124635, 1653875, 5623175, 28115875]

約数ペア:

[(1, 28115875), (5, 5623175), (17, 1653875), (25, 1124635), (85, 330775), (101, 278375), (125, 224927), (131, 214625), (425, 66155), (505, 55675), (655, 42925), (1717, 16375), (2125, 13231), (2227, 12625), (2525, 11135), (3275, 8585)]