28037828

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1$

素因数の和:261

約数の個数: 96

約数和(自身を含む): 67060224

約数和(自身を除く): 39022396

約数列:

[1, 2, 4, 7, 13, 14, 17, 23, 26, 28, 34, 46, 52, 68, 91, 92, 119, 161, 182, 197, 221, 238, 299, 322, 364, 391, 394, 442, 476, 598, 644, 782, 788, 884, 1196, 1379, 1547, 1564, 2093, 2561, 2737, 2758, 3094, 3349, 4186, 4531, 5083, 5122, 5474, 5516, 6188, 6698, 8372, 9062, 10166, 10244, 10948, 13396, 17927, 18124, 20332, 23443, 31717, 35581, 35854, 43537, 46886, 58903, 63434, 71162, 71708, 77027, 87074, 93772, 117806, 126868, 142324, 154054, 174148, 235612, 304759, 308108, 412321, 539189, 609518, 824642, 1001351, 1078378, 1219036, 1649284, 2002702, 2156756, 4005404, 7009457, 14018914, 28037828]

約数ペア:

[(1, 28037828), (2, 14018914), (4, 7009457), (7, 4005404), (13, 2156756), (14, 2002702), (17, 1649284), (23, 1219036), (26, 1078378), (28, 1001351), (34, 824642), (46, 609518), (52, 539189), (68, 412321), (91, 308108), (92, 304759), (119, 235612), (161, 174148), (182, 154054), (197, 142324), (221, 126868), (238, 117806), (299, 93772), (322, 87074), (364, 77027), (391, 71708), (394, 71162), (442, 63434), (476, 58903), (598, 46886), (644, 43537), (782, 35854), (788, 35581), (884, 31717), (1196, 23443), (1379, 20332), (1547, 18124), (1564, 17927), (2093, 13396), (2561, 10948), (2737, 10244), (2758, 10166), (3094, 9062), (3349, 8372), (4186, 6698), (4531, 6188), (5083, 5516), (5122, 5474)]