69120400

素因数分解:

$2^4\times 5^2\times {\mathrm{172801}}^1$

素因数の和:172819

約数の個数: 30

約数和(自身を含む): 166062722

約数和(自身を除く): 96942322

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 172801, 345602, 691204, 864005, 1382408, 1728010, 2764816, 3456020, 4320025, 6912040, 8640050, 13824080, 17280100, 34560200, 69120400]

約数ペア:

[(1, 69120400), (2, 34560200), (4, 17280100), (5, 13824080), (8, 8640050), (10, 6912040), (16, 4320025), (20, 3456020), (25, 2764816), (40, 1728010), (50, 1382408), (80, 864005), (100, 691204), (200, 345602), (400, 172801)]