2741225

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:257

約数の個数: 24

約数和(自身を含む): 3720000

約数和(自身を除く): 978775

約数列:

[1, 5, 19, 25, 29, 95, 145, 199, 475, 551, 725, 995, 2755, 3781, 4975, 5771, 13775, 18905, 28855, 94525, 109649, 144275, 548245, 2741225]

約数ペア:

[(1, 2741225), (5, 548245), (19, 144275), (25, 109649), (29, 94525), (95, 28855), (145, 18905), (199, 13775), (475, 5771), (551, 4975), (725, 3781), (995, 2755)]