28128564

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{12809}}^1$

素因数の和:12880

約数の個数: 36

約数和(自身を含む): 72274020

約数和(自身を除く): 44145456

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 122, 183, 244, 366, 549, 732, 1098, 2196, 12809, 25618, 38427, 51236, 76854, 115281, 153708, 230562, 461124, 781349, 1562698, 2344047, 3125396, 4688094, 7032141, 9376188, 14064282, 28128564]

約数ペア:

[(1, 28128564), (2, 14064282), (3, 9376188), (4, 7032141), (6, 4688094), (9, 3125396), (12, 2344047), (18, 1562698), (36, 781349), (61, 461124), (122, 230562), (183, 153708), (244, 115281), (366, 76854), (549, 51236), (732, 38427), (1098, 25618), (2196, 12809)]