8690840

素因数分解:

$2^3\times 5^1\times {\mathrm{217271}}^1$

素因数の和:217282

約数の個数: 16

約数和(自身を含む): 19554480

約数和(自身を除く): 10863640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 217271, 434542, 869084, 1086355, 1738168, 2172710, 4345420, 8690840]

約数ペア:

[(1, 8690840), (2, 4345420), (4, 2172710), (5, 1738168), (8, 1086355), (10, 869084), (20, 434542), (40, 217271)]