68685640

素因数分解:

$2^3\times 5^1\times {\mathrm{859}}^1\times {\mathrm{1999}}^1$

素因数の和:2869

約数の個数: 32

約数和(自身を含む): 154800000

約数和(自身を除く): 86114360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 859, 1718, 1999, 3436, 3998, 4295, 6872, 7996, 8590, 9995, 15992, 17180, 19990, 34360, 39980, 79960, 1717141, 3434282, 6868564, 8585705, 13737128, 17171410, 34342820, 68685640]

約数ペア:

[(1, 68685640), (2, 34342820), (4, 17171410), (5, 13737128), (8, 8585705), (10, 6868564), (20, 3434282), (40, 1717141), (859, 79960), (1718, 39980), (1999, 34360), (3436, 19990), (3998, 17180), (4295, 15992), (6872, 9995), (7996, 8590)]