172397740

素因数分解:

$2^2\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{8543}}^1$

素因数の和:9561

約数の個数: 24

約数和(自身を含む): 362436480

約数和(自身を除く): 190038740

約数列:

[1, 2, 4, 5, 10, 20, 1009, 2018, 4036, 5045, 8543, 10090, 17086, 20180, 34172, 42715, 85430, 170860, 8619887, 17239774, 34479548, 43099435, 86198870, 172397740]

約数ペア:

[(1, 172397740), (2, 86198870), (4, 43099435), (5, 34479548), (10, 17239774), (20, 8619887), (1009, 170860), (2018, 85430), (4036, 42715), (5045, 34172), (8543, 20180), (10090, 17086)]