13281500

素因数分解:

$2^2\times 5^3\times {\mathrm{101}}^1\times {\mathrm{263}}^1$

素因数の和:383

約数の個数: 48

約数和(自身を含む): 29405376

約数和(自身を除く): 16123876

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 101, 125, 202, 250, 263, 404, 500, 505, 526, 1010, 1052, 1315, 2020, 2525, 2630, 5050, 5260, 6575, 10100, 12625, 13150, 25250, 26300, 26563, 32875, 50500, 53126, 65750, 106252, 131500, 132815, 265630, 531260, 664075, 1328150, 2656300, 3320375, 6640750, 13281500]

約数ペア:

[(1, 13281500), (2, 6640750), (4, 3320375), (5, 2656300), (10, 1328150), (20, 664075), (25, 531260), (50, 265630), (100, 132815), (101, 131500), (125, 106252), (202, 65750), (250, 53126), (263, 50500), (404, 32875), (500, 26563), (505, 26300), (526, 25250), (1010, 13150), (1052, 12625), (1315, 10100), (2020, 6575), (2525, 5260), (2630, 5050)]