20512397584

素因数分解:

$2^4\times 7^1\times {\mathrm{271}}^1\times {\mathrm{675817}}^1$

素因数の和:676103

約数の個数: 40

約数和(自身を含む): 45587979008

約数和(自身を除く): 25075581424

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 271, 542, 1084, 1897, 2168, 3794, 4336, 7588, 15176, 30352, 675817, 1351634, 2703268, 4730719, 5406536, 9461438, 10813072, 18922876, 37845752, 75691504, 183146407, 366292814, 732585628, 1282024849, 1465171256, 2564049698, 2930342512, 5128099396, 10256198792, 20512397584]

約数ペア:

[(1, 20512397584), (2, 10256198792), (4, 5128099396), (7, 2930342512), (8, 2564049698), (14, 1465171256), (16, 1282024849), (28, 732585628), (56, 366292814), (112, 183146407), (271, 75691504), (542, 37845752), (1084, 18922876), (1897, 10813072), (2168, 9461438), (3794, 5406536), (4336, 4730719), (7588, 2703268), (15176, 1351634), (30352, 675817)]