131579680

素因数分解:

$2^5\times 5^1\times {\mathrm{193}}^1\times {\mathrm{4261}}^1$

素因数の和:4469

約数の個数: 48

約数和(自身を含む): 312540984

約数和(自身を除く): 180961304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 193, 386, 772, 965, 1544, 1930, 3088, 3860, 4261, 6176, 7720, 8522, 15440, 17044, 21305, 30880, 34088, 42610, 68176, 85220, 136352, 170440, 340880, 681760, 822373, 1644746, 3289492, 4111865, 6578984, 8223730, 13157968, 16447460, 26315936, 32894920, 65789840, 131579680]

約数ペア:

[(1, 131579680), (2, 65789840), (4, 32894920), (5, 26315936), (8, 16447460), (10, 13157968), (16, 8223730), (20, 6578984), (32, 4111865), (40, 3289492), (80, 1644746), (160, 822373), (193, 681760), (386, 340880), (772, 170440), (965, 136352), (1544, 85220), (1930, 68176), (3088, 42610), (3860, 34088), (4261, 30880), (6176, 21305), (7720, 17044), (8522, 15440)]