20501968

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{31253}}^1$

素因数の和:31302

約数の個数: 20

約数和(自身を含む): 40692708

約数和(自身を除く): 20190740

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 31253, 62506, 125012, 250024, 500048, 1281373, 2562746, 5125492, 10250984, 20501968]

約数ペア:

[(1, 20501968), (2, 10250984), (4, 5125492), (8, 2562746), (16, 1281373), (41, 500048), (82, 250024), (164, 125012), (328, 62506), (656, 31253)]