20006680

素因数分解:

$2^3\times 5^1\times {\mathrm{500167}}^1$

素因数の和:500178

約数の個数: 16

約数和(自身を含む): 45015120

約数和(自身を除く): 25008440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 500167, 1000334, 2000668, 2500835, 4001336, 5001670, 10003340, 20006680]

約数ペア:

[(1, 20006680), (2, 10003340), (4, 5001670), (5, 4001336), (8, 2500835), (10, 2000668), (20, 1000334), (40, 500167)]