20477896

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{677}}^1$

素因数の和:901

約数の個数: 32

約数和(自身を含む): 40680000

約数和(自身を除く): 20202104

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 199, 398, 677, 796, 1354, 1592, 2708, 3781, 5416, 7562, 12863, 15124, 25726, 30248, 51452, 102904, 134723, 269446, 538892, 1077784, 2559737, 5119474, 10238948, 20477896]

約数ペア:

[(1, 20477896), (2, 10238948), (4, 5119474), (8, 2559737), (19, 1077784), (38, 538892), (76, 269446), (152, 134723), (199, 102904), (398, 51452), (677, 30248), (796, 25726), (1354, 15124), (1592, 12863), (2708, 7562), (3781, 5416)]