20465990

素因数分解:

$2^1\times 5^1\times {\mathrm{1049}}^1\times {\mathrm{1951}}^1$

素因数の和:3007

約数の個数: 16

約数和(自身を含む): 36892800

約数和(自身を除く): 16426810

約数列:

[1, 2, 5, 10, 1049, 1951, 2098, 3902, 5245, 9755, 10490, 19510, 2046599, 4093198, 10232995, 20465990]

約数ペア:

[(1, 20465990), (2, 10232995), (5, 4093198), (10, 2046599), (1049, 19510), (1951, 10490), (2098, 9755), (3902, 5245)]