20676215824

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{64231}}^1$

素因数の和:64340

約数の個数: 80

約数和(自身を含む): 45877063680

約数和(自身を除く): 25200847856

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 44, 59, 62, 88, 118, 124, 176, 236, 248, 341, 472, 496, 649, 682, 944, 1298, 1364, 1829, 2596, 2728, 3658, 5192, 5456, 7316, 10384, 14632, 20119, 29264, 40238, 64231, 80476, 128462, 160952, 256924, 321904, 513848, 706541, 1027696, 1413082, 1991161, 2826164, 3789629, 3982322, 5652328, 7579258, 7964644, 11304656, 15158516, 15929288, 21902771, 30317032, 31858576, 41685919, 43805542, 60634064, 83371838, 87611084, 117478499, 166743676, 175222168, 234956998, 333487352, 350444336, 469913996, 666974704, 939827992, 1292263489, 1879655984, 2584526978, 5169053956, 10338107912, 20676215824]

約数ペア:

[(1, 20676215824), (2, 10338107912), (4, 5169053956), (8, 2584526978), (11, 1879655984), (16, 1292263489), (22, 939827992), (31, 666974704), (44, 469913996), (59, 350444336), (62, 333487352), (88, 234956998), (118, 175222168), (124, 166743676), (176, 117478499), (236, 87611084), (248, 83371838), (341, 60634064), (472, 43805542), (496, 41685919), (649, 31858576), (682, 30317032), (944, 21902771), (1298, 15929288), (1364, 15158516), (1829, 11304656), (2596, 7964644), (2728, 7579258), (3658, 5652328), (5192, 3982322), (5456, 3789629), (7316, 2826164), (10384, 1991161), (14632, 1413082), (20119, 1027696), (29264, 706541), (40238, 513848), (64231, 321904), (80476, 256924), (128462, 160952)]