20201097580

素因数分解:

$2^2\times 5^1\times {\mathrm{1229}}^1\times {\mathrm{821851}}^1$

素因数の和:823089

約数の個数: 24

約数和(自身を含む): 42456874320

約数和(自身を除く): 22255776740

約数列:

[1, 2, 4, 5, 10, 20, 1229, 2458, 4916, 6145, 12290, 24580, 821851, 1643702, 3287404, 4109255, 8218510, 16437020, 1010054879, 2020109758, 4040219516, 5050274395, 10100548790, 20201097580]

約数ペア:

[(1, 20201097580), (2, 10100548790), (4, 5050274395), (5, 4040219516), (10, 2020109758), (20, 1010054879), (1229, 16437020), (2458, 8218510), (4916, 4109255), (6145, 3287404), (12290, 1643702), (24580, 821851)]