8661680

素因数分解:

$2^4\times 5^1\times {\mathrm{108271}}^1$

素因数の和:108284

約数の個数: 20

約数和(自身を含む): 20138592

約数和(自身を除く): 11476912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 108271, 216542, 433084, 541355, 866168, 1082710, 1732336, 2165420, 4330840, 8661680]

約数ペア:

[(1, 8661680), (2, 4330840), (4, 2165420), (5, 1732336), (8, 1082710), (10, 866168), (16, 541355), (20, 433084), (40, 216542), (80, 108271)]