401029775

素因数分解:

$5^2\times {\mathrm{149}}^1\times {\mathrm{199}}^1\times {\mathrm{541}}^1$

素因数の和:899

約数の個数: 24

約数和(自身を含む): 504060000

約数和(自身を除く): 103030225

約数列:

[1, 5, 25, 149, 199, 541, 745, 995, 2705, 3725, 4975, 13525, 29651, 80609, 107659, 148255, 403045, 538295, 741275, 2015225, 2691475, 16041191, 80205955, 401029775]

約数ペア:

[(1, 401029775), (5, 80205955), (25, 16041191), (149, 2691475), (199, 2015225), (541, 741275), (745, 538295), (995, 403045), (2705, 148255), (3725, 107659), (4975, 80609), (13525, 29651)]