138386440

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{25253}}^1$

素因数の和:25401

約数の個数: 32

約数和(自身を含む): 313654680

約数和(自身を除く): 175268240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 25253, 50506, 101012, 126265, 202024, 252530, 505060, 1010120, 3459661, 6919322, 13838644, 17298305, 27677288, 34596610, 69193220, 138386440]

約数ペア:

[(1, 138386440), (2, 69193220), (4, 34596610), (5, 27677288), (8, 17298305), (10, 13838644), (20, 6919322), (40, 3459661), (137, 1010120), (274, 505060), (548, 252530), (685, 202024), (1096, 126265), (1370, 101012), (2740, 50506), (5480, 25253)]