19725325

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{317}}^1$

素因数の和:477

約数の個数: 24

約数和(自身を含む): 26025120

約数和(自身を除く): 6299795

約数列:

[1, 5, 19, 25, 95, 131, 317, 475, 655, 1585, 2489, 3275, 6023, 7925, 12445, 30115, 41527, 62225, 150575, 207635, 789013, 1038175, 3945065, 19725325]

約数ペア:

[(1, 19725325), (5, 3945065), (19, 1038175), (25, 789013), (95, 207635), (131, 150575), (317, 62225), (475, 41527), (655, 30115), (1585, 12445), (2489, 7925), (3275, 6023)]