20520304

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{9643}}^1$

素因数の和:9677

約数の個数: 40

約数和(自身を含む): 47834240

約数和(自身を除く): 27313936

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 9643, 19286, 38572, 67501, 77144, 135002, 154288, 183217, 270004, 366434, 540008, 732868, 1080016, 1282519, 1465736, 2565038, 2931472, 5130076, 10260152, 20520304]

約数ペア:

[(1, 20520304), (2, 10260152), (4, 5130076), (7, 2931472), (8, 2565038), (14, 1465736), (16, 1282519), (19, 1080016), (28, 732868), (38, 540008), (56, 366434), (76, 270004), (112, 183217), (133, 154288), (152, 135002), (266, 77144), (304, 67501), (532, 38572), (1064, 19286), (2128, 9643)]