78195880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{1447}}^1$

素因数の和:1658

約数の個数: 64

約数和(自身を含む): 202256640

約数和(自身を除く): 124060760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 193, 280, 386, 772, 965, 1351, 1447, 1544, 1930, 2702, 2894, 3860, 5404, 5788, 6755, 7235, 7720, 10129, 10808, 11576, 13510, 14470, 20258, 27020, 28940, 40516, 50645, 54040, 57880, 81032, 101290, 202580, 279271, 405160, 558542, 1117084, 1396355, 1954897, 2234168, 2792710, 3909794, 5585420, 7819588, 9774485, 11170840, 15639176, 19548970, 39097940, 78195880]

約数ペア:

[(1, 78195880), (2, 39097940), (4, 19548970), (5, 15639176), (7, 11170840), (8, 9774485), (10, 7819588), (14, 5585420), (20, 3909794), (28, 2792710), (35, 2234168), (40, 1954897), (56, 1396355), (70, 1117084), (140, 558542), (193, 405160), (280, 279271), (386, 202580), (772, 101290), (965, 81032), (1351, 57880), (1447, 54040), (1544, 50645), (1930, 40516), (2702, 28940), (2894, 27020), (3860, 20258), (5404, 14470), (5788, 13510), (6755, 11576), (7235, 10808), (7720, 10129)]