138295480

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{11117}}^1$

素因数の和:11439

約数の個数: 32

約数和(自身を含む): 312193440

約数和(自身を除く): 173897960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 2488, 3110, 6220, 11117, 12440, 22234, 44468, 55585, 88936, 111170, 222340, 444680, 3457387, 6914774, 13829548, 17286935, 27659096, 34573870, 69147740, 138295480]

約数ペア:

[(1, 138295480), (2, 69147740), (4, 34573870), (5, 27659096), (8, 17286935), (10, 13829548), (20, 6914774), (40, 3457387), (311, 444680), (622, 222340), (1244, 111170), (1555, 88936), (2488, 55585), (3110, 44468), (6220, 22234), (11117, 12440)]