20389232

素因数分解:

$2^4\times {\mathrm{251}}^1\times {\mathrm{5077}}^1$

素因数の和:5336

約数の個数: 20

約数和(自身を含む): 39669336

約数和(自身を除く): 19280104

約数列:

[1, 2, 4, 8, 16, 251, 502, 1004, 2008, 4016, 5077, 10154, 20308, 40616, 81232, 1274327, 2548654, 5097308, 10194616, 20389232]

約数ペア:

[(1, 20389232), (2, 10194616), (4, 5097308), (8, 2548654), (16, 1274327), (251, 81232), (502, 40616), (1004, 20308), (2008, 10154), (4016, 5077)]