890257775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{16433}}^1$

素因数の和:16651

約数の個数: 24

約数和(自身を含む): 1210462704

約数和(自身を除く): 320204929

約数列:

[1, 5, 11, 25, 55, 197, 275, 985, 2167, 4925, 10835, 16433, 54175, 82165, 180763, 410825, 903815, 3237301, 4519075, 16186505, 35610311, 80932525, 178051555, 890257775]

約数ペア:

[(1, 890257775), (5, 178051555), (11, 80932525), (25, 35610311), (55, 16186505), (197, 4519075), (275, 3237301), (985, 903815), (2167, 410825), (4925, 180763), (10835, 82165), (16433, 54175)]