12820575

素因数分解:

$3^1\times 5^2\times {\mathrm{199}}^1\times {\mathrm{859}}^1$

素因数の和:1071

約数の個数: 24

約数和(自身を含む): 21328000

約数和(自身を除く): 8507425

約数列:

[1, 3, 5, 15, 25, 75, 199, 597, 859, 995, 2577, 2985, 4295, 4975, 12885, 14925, 21475, 64425, 170941, 512823, 854705, 2564115, 4273525, 12820575]

約数ペア:

[(1, 12820575), (3, 4273525), (5, 2564115), (15, 854705), (25, 512823), (75, 170941), (199, 64425), (597, 21475), (859, 14925), (995, 12885), (2577, 4975), (2985, 4295)]