18156020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47779}}^1$

素因数の和:47807

約数の個数: 24

約数和(自身を含む): 40135200

約数和(自身を除く): 21979180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 47779, 95558, 191116, 238895, 477790, 907801, 955580, 1815602, 3631204, 4539005, 9078010, 18156020]

約数ペア:

[(1, 18156020), (2, 9078010), (4, 4539005), (5, 3631204), (10, 1815602), (19, 955580), (20, 907801), (38, 477790), (76, 238895), (95, 191116), (190, 95558), (380, 47779)]