20778576

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:169

約数の個数: 160

約数和(自身を含む): 67995648

約数和(自身を除く): 47217072

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 39, 42, 48, 52, 56, 67, 71, 78, 84, 91, 104, 112, 134, 142, 156, 168, 182, 201, 208, 213, 268, 273, 284, 312, 336, 364, 402, 426, 469, 497, 536, 546, 568, 624, 728, 804, 852, 871, 923, 938, 994, 1072, 1092, 1136, 1407, 1456, 1491, 1608, 1704, 1742, 1846, 1876, 1988, 2184, 2613, 2769, 2814, 2982, 3216, 3408, 3484, 3692, 3752, 3976, 4368, 4757, 5226, 5538, 5628, 5964, 6097, 6461, 6968, 7384, 7504, 7952, 9514, 10452, 11076, 11256, 11928, 12194, 12922, 13936, 14271, 14768, 18291, 19028, 19383, 20904, 22152, 22512, 23856, 24388, 25844, 28542, 33299, 36582, 38056, 38766, 41808, 44304, 48776, 51688, 57084, 61841, 66598, 73164, 76112, 77532, 97552, 99897, 103376, 114168, 123682, 133196, 146328, 155064, 185523, 199794, 228336, 247364, 266392, 292656, 310128, 371046, 399588, 432887, 494728, 532784, 742092, 799176, 865774, 989456, 1298661, 1484184, 1598352, 1731548, 2597322, 2968368, 3463096, 5194644, 6926192, 10389288, 20778576]

約数ペア:

[(1, 20778576), (2, 10389288), (3, 6926192), (4, 5194644), (6, 3463096), (7, 2968368), (8, 2597322), (12, 1731548), (13, 1598352), (14, 1484184), (16, 1298661), (21, 989456), (24, 865774), (26, 799176), (28, 742092), (39, 532784), (42, 494728), (48, 432887), (52, 399588), (56, 371046), (67, 310128), (71, 292656), (78, 266392), (84, 247364), (91, 228336), (104, 199794), (112, 185523), (134, 155064), (142, 146328), (156, 133196), (168, 123682), (182, 114168), (201, 103376), (208, 99897), (213, 97552), (268, 77532), (273, 76112), (284, 73164), (312, 66598), (336, 61841), (364, 57084), (402, 51688), (426, 48776), (469, 44304), (497, 41808), (536, 38766), (546, 38056), (568, 36582), (624, 33299), (728, 28542), (804, 25844), (852, 24388), (871, 23856), (923, 22512), (938, 22152), (994, 20904), (1072, 19383), (1092, 19028), (1136, 18291), (1407, 14768), (1456, 14271), (1491, 13936), (1608, 12922), (1704, 12194), (1742, 11928), (1846, 11256), (1876, 11076), (1988, 10452), (2184, 9514), (2613, 7952), (2769, 7504), (2814, 7384), (2982, 6968), (3216, 6461), (3408, 6097), (3484, 5964), (3692, 5628), (3752, 5538), (3976, 5226), (4368, 4757)]