90876280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{857}}^1$

素因数の和:1120

約数の個数: 64

約数和(自身を含む): 224246880

約数和(自身を除く): 133370600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 241, 440, 482, 857, 964, 1205, 1714, 1928, 2410, 2651, 3428, 4285, 4820, 5302, 6856, 8570, 9427, 9640, 10604, 13255, 17140, 18854, 21208, 26510, 34280, 37708, 47135, 53020, 75416, 94270, 106040, 188540, 206537, 377080, 413074, 826148, 1032685, 1652296, 2065370, 2271907, 4130740, 4543814, 8261480, 9087628, 11359535, 18175256, 22719070, 45438140, 90876280]

約数ペア:

[(1, 90876280), (2, 45438140), (4, 22719070), (5, 18175256), (8, 11359535), (10, 9087628), (11, 8261480), (20, 4543814), (22, 4130740), (40, 2271907), (44, 2065370), (55, 1652296), (88, 1032685), (110, 826148), (220, 413074), (241, 377080), (440, 206537), (482, 188540), (857, 106040), (964, 94270), (1205, 75416), (1714, 53020), (1928, 47135), (2410, 37708), (2651, 34280), (3428, 26510), (4285, 21208), (4820, 18854), (5302, 17140), (6856, 13255), (8570, 10604), (9427, 9640)]