3850005

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:225

約数の個数: 32

約数和(自身を含む): 6488064

約数和(自身を除く): 2638059

約数列:

[1, 3, 5, 15, 43, 47, 127, 129, 141, 215, 235, 381, 635, 645, 705, 1905, 2021, 5461, 5969, 6063, 10105, 16383, 17907, 27305, 29845, 30315, 81915, 89535, 256667, 770001, 1283335, 3850005]

約数ペア:

[(1, 3850005), (3, 1283335), (5, 770001), (15, 256667), (43, 89535), (47, 81915), (127, 30315), (129, 29845), (141, 27305), (215, 17907), (235, 16383), (381, 10105), (635, 6063), (645, 5969), (705, 5461), (1905, 2021)]