251138495

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^2\times {\mathrm{317}}^1$

素因数の和:511

約数の個数: 24

約数和(自身を含む): 319307616

約数和(自身を除く): 68169121

約数列:

[1, 5, 23, 83, 115, 317, 415, 1585, 1909, 6889, 7291, 9545, 26311, 34445, 36455, 131555, 158447, 605153, 792235, 2183813, 3025765, 10919065, 50227699, 251138495]

約数ペア:

[(1, 251138495), (5, 50227699), (23, 10919065), (83, 3025765), (115, 2183813), (317, 792235), (415, 605153), (1585, 158447), (1909, 131555), (6889, 36455), (7291, 34445), (9545, 26311)]