20800858

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:167

約数の個数: 48

約数和(自身を含む): 36892800

約数和(自身を除く): 16091942

約数列:

[1, 2, 13, 19, 26, 38, 41, 79, 82, 158, 169, 247, 338, 494, 533, 779, 1027, 1066, 1501, 1558, 2054, 3002, 3211, 3239, 6422, 6478, 6929, 10127, 13351, 13858, 19513, 20254, 26702, 39026, 42107, 61541, 84214, 123082, 131651, 253669, 263302, 507338, 547391, 800033, 1094782, 1600066, 10400429, 20800858]

約数ペア:

[(1, 20800858), (2, 10400429), (13, 1600066), (19, 1094782), (26, 800033), (38, 547391), (41, 507338), (79, 263302), (82, 253669), (158, 131651), (169, 123082), (247, 84214), (338, 61541), (494, 42107), (533, 39026), (779, 26702), (1027, 20254), (1066, 19513), (1501, 13858), (1558, 13351), (2054, 10127), (3002, 6929), (3211, 6478), (3239, 6422)]