7886680

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2777}}^1$

素因数の和:2859

約数の個数: 32

約数和(自身を含む): 18001440

約数和(自身を除く): 10114760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2777, 2840, 5554, 11108, 13885, 22216, 27770, 55540, 111080, 197167, 394334, 788668, 985835, 1577336, 1971670, 3943340, 7886680]

約数ペア:

[(1, 7886680), (2, 3943340), (4, 1971670), (5, 1577336), (8, 985835), (10, 788668), (20, 394334), (40, 197167), (71, 111080), (142, 55540), (284, 27770), (355, 22216), (568, 13885), (710, 11108), (1420, 5554), (2777, 2840)]