20339875

素因数分解:

$5^3\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:256

約数の個数: 32

約数和(自身を含む): 27256320

約数和(自身を除く): 6916445

約数列:

[1, 5, 25, 29, 31, 125, 145, 155, 181, 725, 775, 899, 905, 3625, 3875, 4495, 4525, 5249, 5611, 22475, 22625, 26245, 28055, 112375, 131225, 140275, 162719, 656125, 701375, 813595, 4067975, 20339875]

約数ペア:

[(1, 20339875), (5, 4067975), (25, 813595), (29, 701375), (31, 656125), (125, 162719), (145, 140275), (155, 131225), (181, 112375), (725, 28055), (775, 26245), (899, 22625), (905, 22475), (3625, 5611), (3875, 5249), (4495, 4525)]