81262315

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{2351}}^1$

素因数の和:2610

約数の個数: 16

約数和(自身を含む): 101154816

約数和(自身を除く): 19892501

約数列:

[1, 5, 31, 155, 223, 1115, 2351, 6913, 11755, 34565, 72881, 364405, 524273, 2621365, 16252463, 81262315]

約数ペア:

[(1, 81262315), (5, 16252463), (31, 2621365), (155, 524273), (223, 364405), (1115, 72881), (2351, 34565), (6913, 11755)]