19504375

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{2837}}^1$

素因数の和:2868

約数の個数: 20

約数和(自身を含む): 26597736

約数和(自身を除く): 7093361

約数列:

[1, 5, 11, 25, 55, 125, 275, 625, 1375, 2837, 6875, 14185, 31207, 70925, 156035, 354625, 780175, 1773125, 3900875, 19504375]

約数ペア:

[(1, 19504375), (5, 3900875), (11, 1773125), (25, 780175), (55, 354625), (125, 156035), (275, 70925), (625, 31207), (1375, 14185), (2837, 6875)]