28406360

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{6637}}^1$

素因数の和:6755

約数の個数: 32

約数和(自身を含む): 64521360

約数和(自身を除く): 36115000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 6637, 13274, 26548, 33185, 53096, 66370, 132740, 265480, 710159, 1420318, 2840636, 3550795, 5681272, 7101590, 14203180, 28406360]

約数ペア:

[(1, 28406360), (2, 14203180), (4, 7101590), (5, 5681272), (8, 3550795), (10, 2840636), (20, 1420318), (40, 710159), (107, 265480), (214, 132740), (428, 66370), (535, 53096), (856, 33185), (1070, 26548), (2140, 13274), (4280, 6637)]