20618840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{46861}}^1$

素因数の和:46883

約数の個数: 32

約数和(自身を含む): 50610960

約数和(自身を除く): 29992120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 46861, 93722, 187444, 234305, 374888, 468610, 515471, 937220, 1030942, 1874440, 2061884, 2577355, 4123768, 5154710, 10309420, 20618840]

約数ペア:

[(1, 20618840), (2, 10309420), (4, 5154710), (5, 4123768), (8, 2577355), (10, 2061884), (11, 1874440), (20, 1030942), (22, 937220), (40, 515471), (44, 468610), (55, 374888), (88, 234305), (110, 187444), (220, 93722), (440, 46861)]