80813020

素因数分解:

$2^2\times 5^1\times {\mathrm{563}}^1\times {\mathrm{7177}}^1$

素因数の和:7749

約数の個数: 24

約数和(自身を含む): 170032464

約数和(自身を除く): 89219444

約数列:

[1, 2, 4, 5, 10, 20, 563, 1126, 2252, 2815, 5630, 7177, 11260, 14354, 28708, 35885, 71770, 143540, 4040651, 8081302, 16162604, 20203255, 40406510, 80813020]

約数ペア:

[(1, 80813020), (2, 40406510), (4, 20203255), (5, 16162604), (10, 8081302), (20, 4040651), (563, 143540), (1126, 71770), (2252, 35885), (2815, 28708), (5630, 14354), (7177, 11260)]