198194440

素因数分解:

$2^3\times 5^1\times {\mathrm{2081}}^1\times {\mathrm{2381}}^1$

素因数の和:4473

約数の個数: 32

約数和(自身を含む): 446339160

約数和(自身を除く): 248144720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2081, 2381, 4162, 4762, 8324, 9524, 10405, 11905, 16648, 19048, 20810, 23810, 41620, 47620, 83240, 95240, 4954861, 9909722, 19819444, 24774305, 39638888, 49548610, 99097220, 198194440]

約数ペア:

[(1, 198194440), (2, 99097220), (4, 49548610), (5, 39638888), (8, 24774305), (10, 19819444), (20, 9909722), (40, 4954861), (2081, 95240), (2381, 83240), (4162, 47620), (4762, 41620), (8324, 23810), (9524, 20810), (10405, 19048), (11905, 16648)]