8217220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{911}}^1$

素因数の和:972

約数の個数: 48

約数和(自身を含む): 19305216

約数和(自身を除く): 11087996

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 911, 1804, 1822, 2255, 3644, 4510, 4555, 9020, 9110, 10021, 18220, 20042, 37351, 40084, 50105, 74702, 100210, 149404, 186755, 200420, 373510, 410861, 747020, 821722, 1643444, 2054305, 4108610, 8217220]

約数ペア:

[(1, 8217220), (2, 4108610), (4, 2054305), (5, 1643444), (10, 821722), (11, 747020), (20, 410861), (22, 373510), (41, 200420), (44, 186755), (55, 149404), (82, 100210), (110, 74702), (164, 50105), (205, 40084), (220, 37351), (410, 20042), (451, 18220), (820, 10021), (902, 9110), (911, 9020), (1804, 4555), (1822, 4510), (2255, 3644)]