28766800

素因数分解:

$2^4\times 5^2\times {\mathrm{71917}}^1$

素因数の和:71935

約数の個数: 30

約数和(自身を含む): 69113198

約数和(自身を除く): 40346398

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 71917, 143834, 287668, 359585, 575336, 719170, 1150672, 1438340, 1797925, 2876680, 3595850, 5753360, 7191700, 14383400, 28766800]

約数ペア:

[(1, 28766800), (2, 14383400), (4, 7191700), (5, 5753360), (8, 3595850), (10, 2876680), (16, 1797925), (20, 1438340), (25, 1150672), (40, 719170), (50, 575336), (80, 359585), (100, 287668), (200, 143834), (400, 71917)]