640650387

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{1327}}^1\times {\mathrm{12379}}^1$

素因数の和:13722

約数の個数: 16

約数和(自身を含む): 920675840

約数和(自身を除く): 280025453

約数列:

[1, 3, 13, 39, 1327, 3981, 12379, 17251, 37137, 51753, 160927, 482781, 16426933, 49280799, 213550129, 640650387]

約数ペア:

[(1, 640650387), (3, 213550129), (13, 49280799), (39, 16426933), (1327, 482781), (3981, 160927), (12379, 51753), (17251, 37137)]