78119440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{701}}^1$

素因数の和:920

約数の個数: 80

約数和(自身を含む): 208915200

約数和(自身を除く): 130795760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 199, 280, 398, 560, 701, 796, 995, 1393, 1402, 1592, 1990, 2786, 2804, 3184, 3505, 3980, 4907, 5572, 5608, 6965, 7010, 7960, 9814, 11144, 11216, 13930, 14020, 15920, 19628, 22288, 24535, 27860, 28040, 39256, 49070, 55720, 56080, 78512, 98140, 111440, 139499, 196280, 278998, 392560, 557996, 697495, 976493, 1115992, 1394990, 1952986, 2231984, 2789980, 3905972, 4882465, 5579960, 7811944, 9764930, 11159920, 15623888, 19529860, 39059720, 78119440]

約数ペア:

[(1, 78119440), (2, 39059720), (4, 19529860), (5, 15623888), (7, 11159920), (8, 9764930), (10, 7811944), (14, 5579960), (16, 4882465), (20, 3905972), (28, 2789980), (35, 2231984), (40, 1952986), (56, 1394990), (70, 1115992), (80, 976493), (112, 697495), (140, 557996), (199, 392560), (280, 278998), (398, 196280), (560, 139499), (701, 111440), (796, 98140), (995, 78512), (1393, 56080), (1402, 55720), (1592, 49070), (1990, 39256), (2786, 28040), (2804, 27860), (3184, 24535), (3505, 22288), (3980, 19628), (4907, 15920), (5572, 14020), (5608, 13930), (6965, 11216), (7010, 11144), (7960, 9814)]