28298140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{857}}^1$

素因数の和:1006

約数の個数: 48

約数和(自身を含む): 64576512

約数和(自身を除く): 36278372

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 254, 260, 508, 635, 857, 1270, 1651, 1714, 2540, 3302, 3428, 4285, 6604, 8255, 8570, 11141, 16510, 17140, 22282, 33020, 44564, 55705, 108839, 111410, 217678, 222820, 435356, 544195, 1088390, 1414907, 2176780, 2829814, 5659628, 7074535, 14149070, 28298140]

約数ペア:

[(1, 28298140), (2, 14149070), (4, 7074535), (5, 5659628), (10, 2829814), (13, 2176780), (20, 1414907), (26, 1088390), (52, 544195), (65, 435356), (127, 222820), (130, 217678), (254, 111410), (260, 108839), (508, 55705), (635, 44564), (857, 33020), (1270, 22282), (1651, 17140), (1714, 16510), (2540, 11141), (3302, 8570), (3428, 8255), (4285, 6604)]