20180138690

素因数分解:

$2^1\times 5^1\times {\mathrm{4481}}^1\times {\mathrm{450349}}^1$

素因数の和:454837

約数の個数: 16

約数和(自身を含む): 36332436600

約数和(自身を除く): 16152297910

約数列:

[1, 2, 5, 10, 4481, 8962, 22405, 44810, 450349, 900698, 2251745, 4503490, 2018013869, 4036027738, 10090069345, 20180138690]

約数ペア:

[(1, 20180138690), (2, 10090069345), (5, 4036027738), (10, 2018013869), (4481, 4503490), (8962, 2251745), (22405, 900698), (44810, 450349)]