42081380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17389}}^1$

素因数の和:17420

約数の個数: 36

約数和(自身を含む): 97140540

約数和(自身を除く): 55059160

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 17389, 34778, 69556, 86945, 173890, 191279, 347780, 382558, 765116, 956395, 1912790, 2104069, 3825580, 4208138, 8416276, 10520345, 21040690, 42081380]

約数ペア:

[(1, 42081380), (2, 21040690), (4, 10520345), (5, 8416276), (10, 4208138), (11, 3825580), (20, 2104069), (22, 1912790), (44, 956395), (55, 765116), (110, 382558), (121, 347780), (220, 191279), (242, 173890), (484, 86945), (605, 69556), (1210, 34778), (2420, 17389)]