205805955

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{13873}}^1$

素因数の和:13947

約数の個数: 32

約数和(自身を含む): 351622656

約数和(自身を除く): 145816701

約数列:

[1, 3, 5, 15, 23, 43, 69, 115, 129, 215, 345, 645, 989, 2967, 4945, 13873, 14835, 41619, 69365, 208095, 319079, 596539, 957237, 1595395, 1789617, 2982695, 4786185, 8948085, 13720397, 41161191, 68601985, 205805955]

約数ペア:

[(1, 205805955), (3, 68601985), (5, 41161191), (15, 13720397), (23, 8948085), (43, 4786185), (69, 2982695), (115, 1789617), (129, 1595395), (215, 957237), (345, 596539), (645, 319079), (989, 208095), (2967, 69365), (4945, 41619), (13873, 14835)]