2986990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:304

約数の個数: 32

約数和(自身を含む): 5760000

約数和(自身を除く): 2773010

約数列:

[1, 2, 5, 10, 19, 38, 79, 95, 158, 190, 199, 395, 398, 790, 995, 1501, 1990, 3002, 3781, 7505, 7562, 15010, 15721, 18905, 31442, 37810, 78605, 157210, 298699, 597398, 1493495, 2986990]

約数ペア:

[(1, 2986990), (2, 1493495), (5, 597398), (10, 298699), (19, 157210), (38, 78605), (79, 37810), (95, 31442), (158, 18905), (190, 15721), (199, 15010), (395, 7562), (398, 7505), (790, 3781), (995, 3002), (1501, 1990)]