81298568

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41143}}^1$

素因数の和:41181

約数の個数: 32

約数和(自身を含む): 172804800

約数和(自身を除く): 91506232

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 41143, 82286, 164572, 329144, 534859, 781717, 1069718, 1563434, 2139436, 3126868, 4278872, 6253736, 10162321, 20324642, 40649284, 81298568]

約数ペア:

[(1, 81298568), (2, 40649284), (4, 20324642), (8, 10162321), (13, 6253736), (19, 4278872), (26, 3126868), (38, 2139436), (52, 1563434), (76, 1069718), (104, 781717), (152, 534859), (247, 329144), (494, 164572), (988, 82286), (1976, 41143)]