89857480

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{8741}}^1$

素因数の和:9009

約数の個数: 32

約数和(自身を含む): 202989240

約数和(自身を除く): 113131760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 8741, 10280, 17482, 34964, 43705, 69928, 87410, 174820, 349640, 2246437, 4492874, 8985748, 11232185, 17971496, 22464370, 44928740, 89857480]

約数ペア:

[(1, 89857480), (2, 44928740), (4, 22464370), (5, 17971496), (8, 11232185), (10, 8985748), (20, 4492874), (40, 2246437), (257, 349640), (514, 174820), (1028, 87410), (1285, 69928), (2056, 43705), (2570, 34964), (5140, 17482), (8741, 10280)]