20021222990

素因数分解:

$2^1\times 5^1\times {\mathrm{1279}}^1\times {\mathrm{1565381}}^1$

素因数の和:1566667

約数の個数: 16

約数和(自身を含む): 36066401280

約数和(自身を除く): 16045178290

約数列:

[1, 2, 5, 10, 1279, 2558, 6395, 12790, 1565381, 3130762, 7826905, 15653810, 2002122299, 4004244598, 10010611495, 20021222990]

約数ペア:

[(1, 20021222990), (2, 10010611495), (5, 4004244598), (10, 2002122299), (1279, 15653810), (2558, 7826905), (6395, 3130762), (12790, 1565381)]