256468303

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{509}}^1$

素因数の和:656

約数の個数: 32

約数和(自身を含む): 325584000

約数和(自身を除く): 69115697

約数列:

[1, 7, 13, 49, 91, 113, 343, 509, 637, 791, 1469, 3563, 4459, 5537, 6617, 10283, 24941, 38759, 46319, 57517, 71981, 174587, 324233, 402619, 503867, 747721, 2269631, 2818333, 5234047, 19728331, 36638329, 256468303]

約数ペア:

[(1, 256468303), (7, 36638329), (13, 19728331), (49, 5234047), (91, 2818333), (113, 2269631), (343, 747721), (509, 503867), (637, 402619), (791, 324233), (1469, 174587), (3563, 71981), (4459, 57517), (5537, 46319), (6617, 38759), (10283, 24941)]