20131521865

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1\times {\mathrm{719}}^1$

素因数の和:959

約数の個数: 96

約数和(自身を含む): 31026240000

約数和(自身を除く): 10894718135

約数列:

[1, 5, 7, 13, 35, 49, 59, 65, 91, 149, 245, 295, 413, 455, 637, 719, 745, 767, 1043, 1937, 2065, 2891, 3185, 3595, 3835, 5033, 5215, 5369, 7301, 8791, 9347, 9685, 13559, 14455, 25165, 26845, 35231, 36505, 37583, 42421, 43955, 46735, 61537, 65429, 67795, 94913, 107131, 114283, 176155, 187915, 212105, 296947, 307685, 327145, 430759, 458003, 474565, 535655, 551473, 571415, 749917, 799981, 1392703, 1484735, 2078629, 2153795, 2290015, 2757365, 3749585, 3860311, 3999905, 5249419, 5599867, 6320729, 6963515, 9748921, 10393145, 19301555, 26247095, 27022177, 27999335, 31603645, 44245103, 48744605, 68242447, 82169477, 135110885, 221225515, 309715721, 341212235, 410847385, 575186339, 1548578605, 2875931695, 4026304373, 20131521865]

約数ペア:

[(1, 20131521865), (5, 4026304373), (7, 2875931695), (13, 1548578605), (35, 575186339), (49, 410847385), (59, 341212235), (65, 309715721), (91, 221225515), (149, 135110885), (245, 82169477), (295, 68242447), (413, 48744605), (455, 44245103), (637, 31603645), (719, 27999335), (745, 27022177), (767, 26247095), (1043, 19301555), (1937, 10393145), (2065, 9748921), (2891, 6963515), (3185, 6320729), (3595, 5599867), (3835, 5249419), (5033, 3999905), (5215, 3860311), (5369, 3749585), (7301, 2757365), (8791, 2290015), (9347, 2153795), (9685, 2078629), (13559, 1484735), (14455, 1392703), (25165, 799981), (26845, 749917), (35231, 571415), (36505, 551473), (37583, 535655), (42421, 474565), (43955, 458003), (46735, 430759), (61537, 327145), (65429, 307685), (67795, 296947), (94913, 212105), (107131, 187915), (114283, 176155)]