80933008

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20479}}^1$

素因数の和:20519

約数の個数: 40

約数和(自身を含む): 177766400

約数和(自身を除く): 96833392

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 20479, 40958, 81916, 163832, 266227, 327664, 389101, 532454, 778202, 1064908, 1556404, 2129816, 3112808, 4259632, 5058313, 6225616, 10116626, 20233252, 40466504, 80933008]

約数ペア:

[(1, 80933008), (2, 40466504), (4, 20233252), (8, 10116626), (13, 6225616), (16, 5058313), (19, 4259632), (26, 3112808), (38, 2129816), (52, 1556404), (76, 1064908), (104, 778202), (152, 532454), (208, 389101), (247, 327664), (304, 266227), (494, 163832), (988, 81916), (1976, 40958), (3952, 20479)]