28342040

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{8969}}^1$

素因数の和:9059

約数の個数: 32

約数和(自身を含む): 64584000

約数和(自身を除く): 36241960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 8969, 17938, 35876, 44845, 71752, 89690, 179380, 358760, 708551, 1417102, 2834204, 3542755, 5668408, 7085510, 14171020, 28342040]

約数ペア:

[(1, 28342040), (2, 14171020), (4, 7085510), (5, 5668408), (8, 3542755), (10, 2834204), (20, 1417102), (40, 708551), (79, 358760), (158, 179380), (316, 89690), (395, 71752), (632, 44845), (790, 35876), (1580, 17938), (3160, 8969)]