638792882

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:232

約数の個数: 128

約数和(自身を含む): 1316044800

約数和(自身を除く): 677251918

約数列:

[1, 2, 7, 13, 14, 19, 26, 31, 38, 59, 62, 91, 101, 118, 133, 182, 202, 217, 247, 266, 403, 413, 434, 494, 589, 707, 767, 806, 826, 1121, 1178, 1313, 1414, 1534, 1729, 1829, 1919, 2242, 2626, 2821, 3131, 3458, 3658, 3838, 4123, 5369, 5642, 5959, 6262, 7657, 7847, 8246, 9191, 10738, 11918, 12803, 13433, 14573, 15314, 15694, 18382, 21917, 23777, 24947, 25606, 26866, 29146, 34751, 40703, 41713, 43834, 47554, 49894, 53599, 59489, 69502, 77467, 81406, 83426, 102011, 107198, 113221, 118978, 154934, 166439, 174629, 184729, 204022, 226442, 243257, 284921, 332878, 349258, 369458, 416423, 451763, 486514, 542269, 569842, 773357, 792547, 832846, 903526, 1084538, 1293103, 1471873, 1546714, 1585094, 2401477, 2586206, 2943746, 3162341, 3509851, 4802954, 5413499, 6324682, 7019702, 10303111, 10826998, 16810339, 20606222, 24568957, 33620678, 45628063, 49137914, 91256126, 319396441, 638792882]

約数ペア:

[(1, 638792882), (2, 319396441), (7, 91256126), (13, 49137914), (14, 45628063), (19, 33620678), (26, 24568957), (31, 20606222), (38, 16810339), (59, 10826998), (62, 10303111), (91, 7019702), (101, 6324682), (118, 5413499), (133, 4802954), (182, 3509851), (202, 3162341), (217, 2943746), (247, 2586206), (266, 2401477), (403, 1585094), (413, 1546714), (434, 1471873), (494, 1293103), (589, 1084538), (707, 903526), (767, 832846), (806, 792547), (826, 773357), (1121, 569842), (1178, 542269), (1313, 486514), (1414, 451763), (1534, 416423), (1729, 369458), (1829, 349258), (1919, 332878), (2242, 284921), (2626, 243257), (2821, 226442), (3131, 204022), (3458, 184729), (3658, 174629), (3838, 166439), (4123, 154934), (5369, 118978), (5642, 113221), (5959, 107198), (6262, 102011), (7657, 83426), (7847, 81406), (8246, 77467), (9191, 69502), (10738, 59489), (11918, 53599), (12803, 49894), (13433, 47554), (14573, 43834), (15314, 41713), (15694, 40703), (18382, 34751), (21917, 29146), (23777, 26866), (24947, 25606)]