81623248

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{23509}}^1$

素因数の和:23555

約数の個数: 40

約数和(自身を含む): 186575360

約数和(自身を除く): 104952112

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 23509, 47018, 94036, 164563, 188072, 329126, 376144, 658252, 728779, 1316504, 1457558, 2633008, 2915116, 5101453, 5830232, 10202906, 11660464, 20405812, 40811624, 81623248]

約数ペア:

[(1, 81623248), (2, 40811624), (4, 20405812), (7, 11660464), (8, 10202906), (14, 5830232), (16, 5101453), (28, 2915116), (31, 2633008), (56, 1457558), (62, 1316504), (112, 728779), (124, 658252), (217, 376144), (248, 329126), (434, 188072), (496, 164563), (868, 94036), (1736, 47018), (3472, 23509)]