19902175

素因数分解:

$5^2\times {\mathrm{59}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:303

約数の個数: 24

約数和(自身を含む): 25534080

約数和(自身を除く): 5631905

約数列:

[1, 5, 25, 59, 103, 131, 295, 515, 655, 1475, 2575, 3275, 6077, 7729, 13493, 30385, 38645, 67465, 151925, 193225, 337325, 796087, 3980435, 19902175]

約数ペア:

[(1, 19902175), (5, 3980435), (25, 796087), (59, 337325), (103, 193225), (131, 151925), (295, 67465), (515, 38645), (655, 30385), (1475, 13493), (2575, 7729), (3275, 6077)]