28177480

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{2741}}^1$

素因数の和:3009

約数の個数: 32

約数和(自身を含む): 63669240

約数和(自身を除く): 35491760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 2741, 5140, 5482, 10280, 10964, 13705, 21928, 27410, 54820, 109640, 704437, 1408874, 2817748, 3522185, 5635496, 7044370, 14088740, 28177480]

約数ペア:

[(1, 28177480), (2, 14088740), (4, 7044370), (5, 5635496), (8, 3522185), (10, 2817748), (20, 1408874), (40, 704437), (257, 109640), (514, 54820), (1028, 27410), (1285, 21928), (2056, 13705), (2570, 10964), (2741, 10280), (5140, 5482)]