821844240

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{25747}}^1$

素因数の和:25789

約数の個数: 160

約数和(自身を含む): 3065041920

約数和(自身を除く): 2243197680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 48, 56, 57, 60, 70, 76, 80, 84, 95, 105, 112, 114, 120, 133, 140, 152, 168, 190, 210, 228, 240, 266, 280, 285, 304, 336, 380, 399, 420, 456, 532, 560, 570, 665, 760, 798, 840, 912, 1064, 1140, 1330, 1520, 1596, 1680, 1995, 2128, 2280, 2660, 3192, 3990, 4560, 5320, 6384, 7980, 10640, 15960, 25747, 31920, 51494, 77241, 102988, 128735, 154482, 180229, 205976, 257470, 308964, 360458, 386205, 411952, 489193, 514940, 540687, 617928, 720916, 772410, 901145, 978386, 1029880, 1081374, 1235856, 1441832, 1467579, 1544820, 1802290, 1956772, 2059760, 2162748, 2445965, 2703435, 2883664, 2935158, 3089640, 3424351, 3604580, 3913544, 4325496, 4891930, 5406870, 5870316, 6179280, 6848702, 7209160, 7337895, 7827088, 8650992, 9783860, 10273053, 10813740, 11740632, 13697404, 14418320, 14675790, 17121755, 19567720, 20546106, 21627480, 23481264, 27394808, 29351580, 34243510, 39135440, 41092212, 43254960, 51365265, 54789616, 58703160, 68487020, 82184424, 102730530, 117406320, 136974040, 164368848, 205461060, 273948080, 410922120, 821844240]

約数ペア:

[(1, 821844240), (2, 410922120), (3, 273948080), (4, 205461060), (5, 164368848), (6, 136974040), (7, 117406320), (8, 102730530), (10, 82184424), (12, 68487020), (14, 58703160), (15, 54789616), (16, 51365265), (19, 43254960), (20, 41092212), (21, 39135440), (24, 34243510), (28, 29351580), (30, 27394808), (35, 23481264), (38, 21627480), (40, 20546106), (42, 19567720), (48, 17121755), (56, 14675790), (57, 14418320), (60, 13697404), (70, 11740632), (76, 10813740), (80, 10273053), (84, 9783860), (95, 8650992), (105, 7827088), (112, 7337895), (114, 7209160), (120, 6848702), (133, 6179280), (140, 5870316), (152, 5406870), (168, 4891930), (190, 4325496), (210, 3913544), (228, 3604580), (240, 3424351), (266, 3089640), (280, 2935158), (285, 2883664), (304, 2703435), (336, 2445965), (380, 2162748), (399, 2059760), (420, 1956772), (456, 1802290), (532, 1544820), (560, 1467579), (570, 1441832), (665, 1235856), (760, 1081374), (798, 1029880), (840, 978386), (912, 901145), (1064, 772410), (1140, 720916), (1330, 617928), (1520, 540687), (1596, 514940), (1680, 489193), (1995, 411952), (2128, 386205), (2280, 360458), (2660, 308964), (3192, 257470), (3990, 205976), (4560, 180229), (5320, 154482), (6384, 128735), (7980, 102988), (10640, 77241), (15960, 51494), (25747, 31920)]