28581680

素因数分解:

$2^4\times 5^1\times {\mathrm{357271}}^1$

素因数の和:357284

約数の個数: 20

約数和(自身を含む): 66452592

約数和(自身を除く): 37870912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 357271, 714542, 1429084, 1786355, 2858168, 3572710, 5716336, 7145420, 14290840, 28581680]

約数ペア:

[(1, 28581680), (2, 14290840), (4, 7145420), (5, 5716336), (8, 3572710), (10, 2858168), (16, 1786355), (20, 1429084), (40, 714542), (80, 357271)]