68611600

素因数分解:

$2^4\times 5^2\times {\mathrm{171529}}^1$

素因数の和:171547

約数の個数: 30

約数和(自身を含む): 164840330

約数和(自身を除く): 96228730

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 171529, 343058, 686116, 857645, 1372232, 1715290, 2744464, 3430580, 4288225, 6861160, 8576450, 13722320, 17152900, 34305800, 68611600]

約数ペア:

[(1, 68611600), (2, 34305800), (4, 17152900), (5, 13722320), (8, 8576450), (10, 6861160), (16, 4288225), (20, 3430580), (25, 2744464), (40, 1715290), (50, 1372232), (80, 857645), (100, 686116), (200, 343058), (400, 171529)]