20559115

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1997}}^1$

素因数の和:2102

約数の個数: 16

約数和(自身を含む): 25894080

約数和(自身を除く): 5334965

約数列:

[1, 5, 29, 71, 145, 355, 1997, 2059, 9985, 10295, 57913, 141787, 289565, 708935, 4111823, 20559115]

約数ペア:

[(1, 20559115), (5, 4111823), (29, 708935), (71, 289565), (145, 141787), (355, 57913), (1997, 10295), (2059, 9985)]