28681730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{193}}^2$

素因数の和:411

約数の個数: 48

約数和(自身を含む): 64701504

約数和(自身を除く): 36019774

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 193, 385, 386, 770, 965, 1351, 1930, 2123, 2702, 4246, 6755, 10615, 13510, 14861, 21230, 29722, 37249, 74305, 74498, 148610, 186245, 260743, 372490, 409739, 521486, 819478, 1303715, 2048695, 2607430, 2868173, 4097390, 5736346, 14340865, 28681730]

約数ペア:

[(1, 28681730), (2, 14340865), (5, 5736346), (7, 4097390), (10, 2868173), (11, 2607430), (14, 2048695), (22, 1303715), (35, 819478), (55, 521486), (70, 409739), (77, 372490), (110, 260743), (154, 186245), (193, 148610), (385, 74498), (386, 74305), (770, 37249), (965, 29722), (1351, 21230), (1930, 14861), (2123, 13510), (2702, 10615), (4246, 6755)]