87857185

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{173}}^1\times {\mathrm{601}}^1$

素因数の和:805

約数の個数: 24

約数和(自身を含む): 115013304

約数和(自身を除く): 27156119

約数列:

[1, 5, 13, 65, 169, 173, 601, 845, 865, 2249, 3005, 7813, 11245, 29237, 39065, 101569, 103973, 146185, 507845, 519865, 1351649, 6758245, 17571437, 87857185]

約数ペア:

[(1, 87857185), (5, 17571437), (13, 6758245), (65, 1351649), (169, 519865), (173, 507845), (601, 146185), (845, 103973), (865, 101569), (2249, 39065), (3005, 29237), (7813, 11245)]