28781351425

素因数分解:

$5^2\times {\mathrm{113}}^1\times {\mathrm{577}}^1\times {\mathrm{17657}}^1$

素因数の和:18357

約数の個数: 24

約数和(自身を含む): 36069149016

約数和(自身を除く): 7287797591

約数列:

[1, 5, 25, 113, 565, 577, 2825, 2885, 14425, 17657, 65201, 88285, 326005, 441425, 1630025, 1995241, 9976205, 10188089, 49881025, 50940445, 254702225, 1151254057, 5756270285, 28781351425]

約数ペア:

[(1, 28781351425), (5, 5756270285), (25, 1151254057), (113, 254702225), (565, 50940445), (577, 49881025), (2825, 10188089), (2885, 9976205), (14425, 1995241), (17657, 1630025), (65201, 441425), (88285, 326005)]