28387600

素因数分解:

$2^4\times 5^2\times {\mathrm{70969}}^1$

素因数の和:70987

約数の個数: 30

約数和(自身を含む): 68202170

約数和(自身を除く): 39814570

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 70969, 141938, 283876, 354845, 567752, 709690, 1135504, 1419380, 1774225, 2838760, 3548450, 5677520, 7096900, 14193800, 28387600]

約数ペア:

[(1, 28387600), (2, 14193800), (4, 7096900), (5, 5677520), (8, 3548450), (10, 2838760), (16, 1774225), (20, 1419380), (25, 1135504), (40, 709690), (50, 567752), (80, 354845), (100, 283876), (200, 141938), (400, 70969)]