20175884780

素因数分解:

$2^2\times 5^1\times {\mathrm{2141}}^1\times {\mathrm{471179}}^1$

素因数の和:473329

約数の個数: 24

約数和(自身を含む): 42389237520

約数和(自身を除く): 22213352740

約数列:

[1, 2, 4, 5, 10, 20, 2141, 4282, 8564, 10705, 21410, 42820, 471179, 942358, 1884716, 2355895, 4711790, 9423580, 1008794239, 2017588478, 4035176956, 5043971195, 10087942390, 20175884780]

約数ペア:

[(1, 20175884780), (2, 10087942390), (4, 5043971195), (5, 4035176956), (10, 2017588478), (20, 1008794239), (2141, 9423580), (4282, 4711790), (8564, 2355895), (10705, 1884716), (21410, 942358), (42820, 471179)]