19840760

素因数分解:

$2^3\times 5^1\times {\mathrm{496019}}^1$

素因数の和:496030

約数の個数: 16

約数和(自身を含む): 44641800

約数和(自身を除く): 24801040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 496019, 992038, 1984076, 2480095, 3968152, 4960190, 9920380, 19840760]

約数ペア:

[(1, 19840760), (2, 9920380), (4, 4960190), (5, 3968152), (8, 2480095), (10, 1984076), (20, 992038), (40, 496019)]