20161229744

素因数分解:

$2^4\times {\mathrm{43}}^2\times {\mathrm{661}}^1\times {\mathrm{1031}}^1$

素因数の和:1786

約数の個数: 60

約数和(自身を含む): 40091286672

約数和(自身を除く): 19930056928

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 661, 688, 1031, 1322, 1849, 2062, 2644, 3698, 4124, 5288, 7396, 8248, 10576, 14792, 16496, 28423, 29584, 44333, 56846, 88666, 113692, 177332, 227384, 354664, 454768, 681491, 709328, 1222189, 1362982, 1906319, 2444378, 2725964, 3812638, 4888756, 5451928, 7625276, 9777512, 10903856, 15250552, 19555024, 29304113, 30501104, 58608226, 117216452, 234432904, 468865808, 1260076859, 2520153718, 5040307436, 10080614872, 20161229744]

約数ペア:

[(1, 20161229744), (2, 10080614872), (4, 5040307436), (8, 2520153718), (16, 1260076859), (43, 468865808), (86, 234432904), (172, 117216452), (344, 58608226), (661, 30501104), (688, 29304113), (1031, 19555024), (1322, 15250552), (1849, 10903856), (2062, 9777512), (2644, 7625276), (3698, 5451928), (4124, 4888756), (5288, 3812638), (7396, 2725964), (8248, 2444378), (10576, 1906319), (14792, 1362982), (16496, 1222189), (28423, 709328), (29584, 681491), (44333, 454768), (56846, 354664), (88666, 227384), (113692, 177332)]