20168408078

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{135637}}^1$

素因数の和:135721

約数の個数: 64

約数和(自身を含む): 40105443840

約数和(自身を除く): 19937035762

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 43, 86, 91, 133, 182, 247, 266, 301, 494, 559, 602, 817, 1118, 1634, 1729, 3458, 3913, 5719, 7826, 10621, 11438, 21242, 74347, 135637, 148694, 271274, 949459, 1763281, 1898918, 2577103, 3526562, 5154206, 5832391, 11664782, 12342967, 18039721, 24685934, 33502339, 36079442, 40826737, 67004678, 75821083, 81653474, 110815429, 151642166, 221630858, 234516373, 469032746, 530747581, 775708003, 1061495162, 1440600577, 1551416006, 2881201154, 10084204039, 20168408078]

約数ペア:

[(1, 20168408078), (2, 10084204039), (7, 2881201154), (13, 1551416006), (14, 1440600577), (19, 1061495162), (26, 775708003), (38, 530747581), (43, 469032746), (86, 234516373), (91, 221630858), (133, 151642166), (182, 110815429), (247, 81653474), (266, 75821083), (301, 67004678), (494, 40826737), (559, 36079442), (602, 33502339), (817, 24685934), (1118, 18039721), (1634, 12342967), (1729, 11664782), (3458, 5832391), (3913, 5154206), (5719, 3526562), (7826, 2577103), (10621, 1898918), (11438, 1763281), (21242, 949459), (74347, 271274), (135637, 148694)]