81042280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{184187}}^1$

素因数の和:184209

約数の個数: 32

約数和(自身を含む): 198923040

約数和(自身を除く): 117880760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 184187, 368374, 736748, 920935, 1473496, 1841870, 2026057, 3683740, 4052114, 7367480, 8104228, 10130285, 16208456, 20260570, 40521140, 81042280]

約数ペア:

[(1, 81042280), (2, 40521140), (4, 20260570), (5, 16208456), (8, 10130285), (10, 8104228), (11, 7367480), (20, 4052114), (22, 3683740), (40, 2026057), (44, 1841870), (55, 1473496), (88, 920935), (110, 736748), (220, 368374), (440, 184187)]