31288900

素因数分解:

$2^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{2251}}^1$

素因数の和:2404

約数の個数: 36

約数和(自身を含む): 68415760

約数和(自身を除く): 37126860

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 139, 278, 556, 695, 1390, 2251, 2780, 3475, 4502, 6950, 9004, 11255, 13900, 22510, 45020, 56275, 112550, 225100, 312889, 625778, 1251556, 1564445, 3128890, 6257780, 7822225, 15644450, 31288900]

約数ペア:

[(1, 31288900), (2, 15644450), (4, 7822225), (5, 6257780), (10, 3128890), (20, 1564445), (25, 1251556), (50, 625778), (100, 312889), (139, 225100), (278, 112550), (556, 56275), (695, 45020), (1390, 22510), (2251, 13900), (2780, 11255), (3475, 9004), (4502, 6950)]