1297480

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{199}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 2952000

約数和(自身を除く): 1654520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 199, 326, 398, 652, 796, 815, 995, 1304, 1592, 1630, 1990, 3260, 3980, 6520, 7960, 32437, 64874, 129748, 162185, 259496, 324370, 648740, 1297480]

約数ペア:

[(1, 1297480), (2, 648740), (4, 324370), (5, 259496), (8, 162185), (10, 129748), (20, 64874), (40, 32437), (163, 7960), (199, 6520), (326, 3980), (398, 3260), (652, 1990), (796, 1630), (815, 1592), (995, 1304)]