139572920

素因数分解:

$2^3\times 5^1\times {\mathrm{1289}}^1\times {\mathrm{2707}}^1$

素因数の和:4007

約数の個数: 32

約数和(自身を含む): 314398800

約数和(自身を除く): 174825880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1289, 2578, 2707, 5156, 5414, 6445, 10312, 10828, 12890, 13535, 21656, 25780, 27070, 51560, 54140, 108280, 3489323, 6978646, 13957292, 17446615, 27914584, 34893230, 69786460, 139572920]

約数ペア:

[(1, 139572920), (2, 69786460), (4, 34893230), (5, 27914584), (8, 17446615), (10, 13957292), (20, 6978646), (40, 3489323), (1289, 108280), (2578, 54140), (2707, 51560), (5156, 27070), (5414, 25780), (6445, 21656), (10312, 13535), (10828, 12890)]