20379952

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{661}}^1$

素因数の和:757

約数の個数: 40

約数和(自身を含む): 41372352

約数和(自身を除く): 20992400

約数列:

[1, 2, 4, 8, 16, 41, 47, 82, 94, 164, 188, 328, 376, 656, 661, 752, 1322, 1927, 2644, 3854, 5288, 7708, 10576, 15416, 27101, 30832, 31067, 54202, 62134, 108404, 124268, 216808, 248536, 433616, 497072, 1273747, 2547494, 5094988, 10189976, 20379952]

約数ペア:

[(1, 20379952), (2, 10189976), (4, 5094988), (8, 2547494), (16, 1273747), (41, 497072), (47, 433616), (82, 248536), (94, 216808), (164, 124268), (188, 108404), (328, 62134), (376, 54202), (656, 31067), (661, 30832), (752, 27101), (1322, 15416), (1927, 10576), (2644, 7708), (3854, 5288)]