20780112905

素因数分解:

$5^1\times {\mathrm{149}}^1\times {\mathrm{709}}^1\times {\mathrm{39341}}^1$

素因数の和:40204

約数の個数: 16

約数和(自身を含む): 25139538000

約数和(自身を除く): 4359425095

約数列:

[1, 5, 149, 709, 745, 3545, 39341, 105641, 196705, 528205, 5861809, 27892769, 29309045, 139463845, 4156022581, 20780112905]

約数ペア:

[(1, 20780112905), (5, 4156022581), (149, 139463845), (709, 29309045), (745, 27892769), (3545, 5861809), (39341, 528205), (105641, 196705)]