19250025

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 33521664

約数和(自身を除く): 14271639

約数列:

[1, 3, 5, 15, 25, 43, 47, 75, 127, 129, 141, 215, 235, 381, 635, 645, 705, 1075, 1175, 1905, 2021, 3175, 3225, 3525, 5461, 5969, 6063, 9525, 10105, 16383, 17907, 27305, 29845, 30315, 50525, 81915, 89535, 136525, 149225, 151575, 256667, 409575, 447675, 770001, 1283335, 3850005, 6416675, 19250025]

約数ペア:

[(1, 19250025), (3, 6416675), (5, 3850005), (15, 1283335), (25, 770001), (43, 447675), (47, 409575), (75, 256667), (127, 151575), (129, 149225), (141, 136525), (215, 89535), (235, 81915), (381, 50525), (635, 30315), (645, 29845), (705, 27305), (1075, 17907), (1175, 16383), (1905, 10105), (2021, 9525), (3175, 6063), (3225, 5969), (3525, 5461)]