81154640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{463}}^1$

素因数の和:796

約数の個数: 80

約数和(自身を含む): 216795648

約数和(自身を除く): 135641008

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 313, 463, 560, 626, 926, 1252, 1565, 1852, 2191, 2315, 2504, 3130, 3241, 3704, 4382, 4630, 5008, 6260, 6482, 7408, 8764, 9260, 10955, 12520, 12964, 16205, 17528, 18520, 21910, 25040, 25928, 32410, 35056, 37040, 43820, 51856, 64820, 87640, 129640, 144919, 175280, 259280, 289838, 579676, 724595, 1014433, 1159352, 1449190, 2028866, 2318704, 2898380, 4057732, 5072165, 5796760, 8115464, 10144330, 11593520, 16230928, 20288660, 40577320, 81154640]

約数ペア:

[(1, 81154640), (2, 40577320), (4, 20288660), (5, 16230928), (7, 11593520), (8, 10144330), (10, 8115464), (14, 5796760), (16, 5072165), (20, 4057732), (28, 2898380), (35, 2318704), (40, 2028866), (56, 1449190), (70, 1159352), (80, 1014433), (112, 724595), (140, 579676), (280, 289838), (313, 259280), (463, 175280), (560, 144919), (626, 129640), (926, 87640), (1252, 64820), (1565, 51856), (1852, 43820), (2191, 37040), (2315, 35056), (2504, 32410), (3130, 25928), (3241, 25040), (3704, 21910), (4382, 18520), (4630, 17528), (5008, 16205), (6260, 12964), (6482, 12520), (7408, 10955), (8764, 9260)]