19620760

素因数分解:

$2^3\times 5^1\times {\mathrm{490519}}^1$

素因数の和:490530

約数の個数: 16

約数和(自身を含む): 44146800

約数和(自身を除く): 24526040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 490519, 981038, 1962076, 2452595, 3924152, 4905190, 9810380, 19620760]

約数ペア:

[(1, 19620760), (2, 9810380), (4, 4905190), (5, 3924152), (8, 2452595), (10, 1962076), (20, 981038), (40, 490519)]