20940760

素因数分解:

$2^3\times 5^1\times {\mathrm{523519}}^1$

素因数の和:523530

約数の個数: 16

約数和(自身を含む): 47116800

約数和(自身を除く): 26176040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 523519, 1047038, 2094076, 2617595, 4188152, 5235190, 10470380, 20940760]

約数ペア:

[(1, 20940760), (2, 10470380), (4, 5235190), (5, 4188152), (8, 2617595), (10, 2094076), (20, 1047038), (40, 523519)]