20048830

素因数分解:

$2^1\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{1987}}^1$

素因数の和:3003

約数の個数: 16

約数和(自身を含む): 36141840

約数和(自身を除く): 16093010

約数列:

[1, 2, 5, 10, 1009, 1987, 2018, 3974, 5045, 9935, 10090, 19870, 2004883, 4009766, 10024415, 20048830]

約数ペア:

[(1, 20048830), (2, 10024415), (5, 4009766), (10, 2004883), (1009, 19870), (1987, 10090), (2018, 9935), (3974, 5045)]