138792280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{315437}}^1$

素因数の和:315459

約数の個数: 32

約数和(自身を含む): 340673040

約数和(自身を除く): 201880760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 315437, 630874, 1261748, 1577185, 2523496, 3154370, 3469807, 6308740, 6939614, 12617480, 13879228, 17349035, 27758456, 34698070, 69396140, 138792280]

約数ペア:

[(1, 138792280), (2, 69396140), (4, 34698070), (5, 27758456), (8, 17349035), (10, 13879228), (11, 12617480), (20, 6939614), (22, 6308740), (40, 3469807), (44, 3154370), (55, 2523496), (88, 1577185), (110, 1261748), (220, 630874), (440, 315437)]