20951080

素因数分解:

$2^3\times 5^1\times {\mathrm{523777}}^1$

素因数の和:523788

約数の個数: 16

約数和(自身を含む): 47140020

約数和(自身を除く): 26188940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 523777, 1047554, 2095108, 2618885, 4190216, 5237770, 10475540, 20951080]

約数ペア:

[(1, 20951080), (2, 10475540), (4, 5237770), (5, 4190216), (8, 2618885), (10, 2095108), (20, 1047554), (40, 523777)]