20261380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{24709}}^1$

素因数の和:24759

約数の個数: 24

約数和(自身を含む): 43588440

約数和(自身を除く): 23327060

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 24709, 49418, 98836, 123545, 247090, 494180, 1013069, 2026138, 4052276, 5065345, 10130690, 20261380]

約数ペア:

[(1, 20261380), (2, 10130690), (4, 5065345), (5, 4052276), (10, 2026138), (20, 1013069), (41, 494180), (82, 247090), (164, 123545), (205, 98836), (410, 49418), (820, 24709)]