20168865598

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{251903}}^1$

素因数の和:251981

約数の個数: 48

約数和(自身を含む): 37906513920

約数和(自身を除く): 17737648322

約数列:

[1, 2, 7, 14, 19, 38, 43, 49, 86, 98, 133, 266, 301, 602, 817, 931, 1634, 1862, 2107, 4214, 5719, 11438, 40033, 80066, 251903, 503806, 1763321, 3526642, 4786157, 9572314, 10831829, 12343247, 21663658, 24686494, 33503099, 67006198, 75822803, 151645606, 205804751, 234521693, 411609502, 469043386, 530759621, 1061519242, 1440633257, 2881266514, 10084432799, 20168865598]

約数ペア:

[(1, 20168865598), (2, 10084432799), (7, 2881266514), (14, 1440633257), (19, 1061519242), (38, 530759621), (43, 469043386), (49, 411609502), (86, 234521693), (98, 205804751), (133, 151645606), (266, 75822803), (301, 67006198), (602, 33503099), (817, 24686494), (931, 21663658), (1634, 12343247), (1862, 10831829), (2107, 9572314), (4214, 4786157), (5719, 3526642), (11438, 1763321), (40033, 503806), (80066, 251903)]