131412920

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{113287}}^1$

素因数の和:113327

約数の個数: 32

約数和(自身を含む): 305877600

約数和(自身を除く): 174464680

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 113287, 226574, 453148, 566435, 906296, 1132870, 2265740, 3285323, 4531480, 6570646, 13141292, 16426615, 26282584, 32853230, 65706460, 131412920]

約数ペア:

[(1, 131412920), (2, 65706460), (4, 32853230), (5, 26282584), (8, 16426615), (10, 13141292), (20, 6570646), (29, 4531480), (40, 3285323), (58, 2265740), (116, 1132870), (145, 906296), (232, 566435), (290, 453148), (580, 226574), (1160, 113287)]