19998660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{193}}^1$

素因数の和:373

約数の個数: 96

約数和(自身を含む): 61794432

約数和(自身を除く): 41795772

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 157, 165, 193, 220, 314, 330, 386, 471, 579, 628, 660, 772, 785, 942, 965, 1158, 1570, 1727, 1884, 1930, 2123, 2316, 2355, 2895, 3140, 3454, 3860, 4246, 4710, 5181, 5790, 6369, 6908, 8492, 8635, 9420, 10362, 10615, 11580, 12738, 17270, 20724, 21230, 25476, 25905, 30301, 31845, 34540, 42460, 51810, 60602, 63690, 90903, 103620, 121204, 127380, 151505, 181806, 303010, 333311, 363612, 454515, 606020, 666622, 909030, 999933, 1333244, 1666555, 1818060, 1999866, 3333110, 3999732, 4999665, 6666220, 9999330, 19998660]

約数ペア:

[(1, 19998660), (2, 9999330), (3, 6666220), (4, 4999665), (5, 3999732), (6, 3333110), (10, 1999866), (11, 1818060), (12, 1666555), (15, 1333244), (20, 999933), (22, 909030), (30, 666622), (33, 606020), (44, 454515), (55, 363612), (60, 333311), (66, 303010), (110, 181806), (132, 151505), (157, 127380), (165, 121204), (193, 103620), (220, 90903), (314, 63690), (330, 60602), (386, 51810), (471, 42460), (579, 34540), (628, 31845), (660, 30301), (772, 25905), (785, 25476), (942, 21230), (965, 20724), (1158, 17270), (1570, 12738), (1727, 11580), (1884, 10615), (1930, 10362), (2123, 9420), (2316, 8635), (2355, 8492), (2895, 6908), (3140, 6369), (3454, 5790), (3860, 5181), (4246, 4710)]