20774480

素因数分解:

$2^4\times 5^1\times {\mathrm{259681}}^1$

素因数の和:259694

約数の個数: 20

約数和(自身を含む): 48300852

約数和(自身を除く): 27526372

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 259681, 519362, 1038724, 1298405, 2077448, 2596810, 4154896, 5193620, 10387240, 20774480]

約数ペア:

[(1, 20774480), (2, 10387240), (4, 5193620), (5, 4154896), (8, 2596810), (10, 2077448), (16, 1298405), (20, 1038724), (40, 519362), (80, 259681)]