10120820

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{787}}^1$

素因数の和:1439

約数の個数: 24

約数和(自身を含む): 21313824

約数和(自身を除く): 11193004

約数列:

[1, 2, 4, 5, 10, 20, 643, 787, 1286, 1574, 2572, 3148, 3215, 3935, 6430, 7870, 12860, 15740, 506041, 1012082, 2024164, 2530205, 5060410, 10120820]

約数ペア:

[(1, 10120820), (2, 5060410), (4, 2530205), (5, 2024164), (10, 1012082), (20, 506041), (643, 15740), (787, 12860), (1286, 7870), (1574, 6430), (2572, 3935), (3148, 3215)]