81350490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{208591}}^1$

素因数の和:208614

約数の個数: 32

約数和(自身を含む): 210260736

約数和(自身を除く): 128910246

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 208591, 417182, 625773, 1042955, 1251546, 2085910, 2711683, 3128865, 5423366, 6257730, 8135049, 13558415, 16270098, 27116830, 40675245, 81350490]

約数ペア:

[(1, 81350490), (2, 40675245), (3, 27116830), (5, 16270098), (6, 13558415), (10, 8135049), (13, 6257730), (15, 5423366), (26, 3128865), (30, 2711683), (39, 2085910), (65, 1251546), (78, 1042955), (130, 625773), (195, 417182), (390, 208591)]