28786810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2803}}^1$

素因数の和:2902

約数の個数: 32

約数和(自身を含む): 56528640

約数和(自身を除く): 27741830

約数列:

[1, 2, 5, 10, 13, 26, 65, 79, 130, 158, 395, 790, 1027, 2054, 2803, 5135, 5606, 10270, 14015, 28030, 36439, 72878, 182195, 221437, 364390, 442874, 1107185, 2214370, 2878681, 5757362, 14393405, 28786810]

約数ペア:

[(1, 28786810), (2, 14393405), (5, 5757362), (10, 2878681), (13, 2214370), (26, 1107185), (65, 442874), (79, 364390), (130, 221437), (158, 182195), (395, 72878), (790, 36439), (1027, 28030), (2054, 14015), (2803, 10270), (5135, 5606)]