18538540

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31963}}^1$

素因数の和:32001

約数の個数: 24

約数和(自身を含む): 40274640

約数和(自身を除く): 21736100

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 31963, 63926, 127852, 159815, 319630, 639260, 926927, 1853854, 3707708, 4634635, 9269270, 18538540]

約数ペア:

[(1, 18538540), (2, 9269270), (4, 4634635), (5, 3707708), (10, 1853854), (20, 926927), (29, 639260), (58, 319630), (116, 159815), (145, 127852), (290, 63926), (580, 31963)]