8782840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19961}}^1$

素因数の和:19983

約数の個数: 32

約数和(自身を含む): 21558960

約数和(自身を除く): 12776120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 19961, 39922, 79844, 99805, 159688, 199610, 219571, 399220, 439142, 798440, 878284, 1097855, 1756568, 2195710, 4391420, 8782840]

約数ペア:

[(1, 8782840), (2, 4391420), (4, 2195710), (5, 1756568), (8, 1097855), (10, 878284), (11, 798440), (20, 439142), (22, 399220), (40, 219571), (44, 199610), (55, 159688), (88, 99805), (110, 79844), (220, 39922), (440, 19961)]