7221680

素因数分解:

$2^4\times 5^1\times {\mathrm{90271}}^1$

素因数の和:90284

約数の個数: 20

約数和(自身を含む): 16790592

約数和(自身を除く): 9568912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 90271, 180542, 361084, 451355, 722168, 902710, 1444336, 1805420, 3610840, 7221680]

約数ペア:

[(1, 7221680), (2, 3610840), (4, 1805420), (5, 1444336), (8, 902710), (10, 722168), (16, 451355), (20, 361084), (40, 180542), (80, 90271)]