81706580

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{177623}}^1$

素因数の和:177655

約数の個数: 24

約数和(自身を含む): 179044992

約数和(自身を除く): 97338412

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 177623, 355246, 710492, 888115, 1776230, 3552460, 4085329, 8170658, 16341316, 20426645, 40853290, 81706580]

約数ペア:

[(1, 81706580), (2, 40853290), (4, 20426645), (5, 16341316), (10, 8170658), (20, 4085329), (23, 3552460), (46, 1776230), (92, 888115), (115, 710492), (230, 355246), (460, 177623)]