28457560

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{15137}}^1$

素因数の和:15195

約数の個数: 32

約数和(自身を含む): 65396160

約数和(自身を除く): 36938600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 15137, 30274, 60548, 75685, 121096, 151370, 302740, 605480, 711439, 1422878, 2845756, 3557195, 5691512, 7114390, 14228780, 28457560]

約数ペア:

[(1, 28457560), (2, 14228780), (4, 7114390), (5, 5691512), (8, 3557195), (10, 2845756), (20, 1422878), (40, 711439), (47, 605480), (94, 302740), (188, 151370), (235, 121096), (376, 75685), (470, 60548), (940, 30274), (1880, 15137)]