181008020

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{71263}}^1$

素因数の和:71399

約数の個数: 24

約数和(自身を含む): 383115264

約数和(自身を除く): 202107244

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 71263, 142526, 285052, 356315, 712630, 1425260, 9050401, 18100802, 36201604, 45252005, 90504010, 181008020]

約数ペア:

[(1, 181008020), (2, 90504010), (4, 45252005), (5, 36201604), (10, 18100802), (20, 9050401), (127, 1425260), (254, 712630), (508, 356315), (635, 285052), (1270, 142526), (2540, 71263)]