81374992

素因数分解:

$2^4\times {\mathrm{313}}^1\times {\mathrm{16249}}^1$

素因数の和:16570

約数の個数: 20

約数和(自身を含む): 158177500

約数和(自身を除く): 76802508

約数列:

[1, 2, 4, 8, 16, 313, 626, 1252, 2504, 5008, 16249, 32498, 64996, 129992, 259984, 5085937, 10171874, 20343748, 40687496, 81374992]

約数ペア:

[(1, 81374992), (2, 40687496), (4, 20343748), (8, 10171874), (16, 5085937), (313, 259984), (626, 129992), (1252, 64996), (2504, 32498), (5008, 16249)]