20178954404

素因数分解:

$2^2\times 7^2\times {\mathrm{157}}^1\times {\mathrm{655757}}^1$

素因数の和:655932

約数の個数: 36

約数和(自身を含む): 41340295836

約数和(自身を除く): 21161341432

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 157, 196, 314, 628, 1099, 2198, 4396, 7693, 15386, 30772, 655757, 1311514, 2623028, 4590299, 9180598, 18361196, 32132093, 64264186, 102953849, 128528372, 205907698, 411815396, 720676943, 1441353886, 2882707772, 5044738601, 10089477202, 20178954404]

約数ペア:

[(1, 20178954404), (2, 10089477202), (4, 5044738601), (7, 2882707772), (14, 1441353886), (28, 720676943), (49, 411815396), (98, 205907698), (157, 128528372), (196, 102953849), (314, 64264186), (628, 32132093), (1099, 18361196), (2198, 9180598), (4396, 4590299), (7693, 2623028), (15386, 1311514), (30772, 655757)]