663612656

素因数分解:

$2^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{709}}^1$

素因数の和:922

約数の個数: 80

約数和(自身を含む): 1506540480

約数和(自身を除く): 842927824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 61, 112, 122, 137, 244, 274, 427, 488, 548, 709, 854, 959, 976, 1096, 1418, 1708, 1918, 2192, 2836, 3416, 3836, 4963, 5672, 6832, 7672, 8357, 9926, 11344, 15344, 16714, 19852, 33428, 39704, 43249, 58499, 66856, 79408, 86498, 97133, 116998, 133712, 172996, 194266, 233996, 302743, 345992, 388532, 467992, 605486, 679931, 691984, 777064, 935984, 1210972, 1359862, 1554128, 2421944, 2719724, 4843888, 5439448, 5925113, 10878896, 11850226, 23700452, 41475791, 47400904, 82951582, 94801808, 165903164, 331806328, 663612656]

約数ペア:

[(1, 663612656), (2, 331806328), (4, 165903164), (7, 94801808), (8, 82951582), (14, 47400904), (16, 41475791), (28, 23700452), (56, 11850226), (61, 10878896), (112, 5925113), (122, 5439448), (137, 4843888), (244, 2719724), (274, 2421944), (427, 1554128), (488, 1359862), (548, 1210972), (709, 935984), (854, 777064), (959, 691984), (976, 679931), (1096, 605486), (1418, 467992), (1708, 388532), (1918, 345992), (2192, 302743), (2836, 233996), (3416, 194266), (3836, 172996), (4963, 133712), (5672, 116998), (6832, 97133), (7672, 86498), (8357, 79408), (9926, 66856), (11344, 58499), (15344, 43249), (16714, 39704), (19852, 33428)]