10404140

素因数分解:

$2^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{787}}^1$

素因数の和:1457

約数の個数: 24

約数和(自身を含む): 21909552

約数和(自身を除く): 11505412

約数列:

[1, 2, 4, 5, 10, 20, 661, 787, 1322, 1574, 2644, 3148, 3305, 3935, 6610, 7870, 13220, 15740, 520207, 1040414, 2080828, 2601035, 5202070, 10404140]

約数ペア:

[(1, 10404140), (2, 5202070), (4, 2601035), (5, 2080828), (10, 1040414), (20, 520207), (661, 15740), (787, 13220), (1322, 7870), (1574, 6610), (2644, 3935), (3148, 3305)]