28456090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{3083}}^1$

素因数の和:3174

約数の個数: 32

約数和(自身を含む): 55956096

約数和(自身を除く): 27500006

約数列:

[1, 2, 5, 10, 13, 26, 65, 71, 130, 142, 355, 710, 923, 1846, 3083, 4615, 6166, 9230, 15415, 30830, 40079, 80158, 200395, 218893, 400790, 437786, 1094465, 2188930, 2845609, 5691218, 14228045, 28456090]

約数ペア:

[(1, 28456090), (2, 14228045), (5, 5691218), (10, 2845609), (13, 2188930), (26, 1094465), (65, 437786), (71, 400790), (130, 218893), (142, 200395), (355, 80158), (710, 40079), (923, 30830), (1846, 15415), (3083, 9230), (4615, 6166)]