81274856

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41131}}^1$

素因数の和:41169

約数の個数: 32

約数和(自身を含む): 172754400

約数和(自身を除く): 91479544

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 41131, 82262, 164524, 329048, 534703, 781489, 1069406, 1562978, 2138812, 3125956, 4277624, 6251912, 10159357, 20318714, 40637428, 81274856]

約数ペア:

[(1, 81274856), (2, 40637428), (4, 20318714), (8, 10159357), (13, 6251912), (19, 4277624), (26, 3125956), (38, 2138812), (52, 1562978), (76, 1069406), (104, 781489), (152, 534703), (247, 329048), (494, 164524), (988, 82262), (1976, 41131)]