80648240

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{241}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 194451840

約数和(自身を除く): 113803600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 89, 94, 178, 188, 235, 241, 356, 376, 445, 470, 482, 712, 752, 890, 940, 964, 1205, 1424, 1780, 1880, 1928, 2410, 3560, 3760, 3856, 4183, 4820, 7120, 8366, 9640, 11327, 16732, 19280, 20915, 21449, 22654, 33464, 41830, 42898, 45308, 56635, 66928, 83660, 85796, 90616, 107245, 113270, 167320, 171592, 181232, 214490, 226540, 334640, 343184, 428980, 453080, 857960, 906160, 1008103, 1715920, 2016206, 4032412, 5040515, 8064824, 10081030, 16129648, 20162060, 40324120, 80648240]

約数ペア:

[(1, 80648240), (2, 40324120), (4, 20162060), (5, 16129648), (8, 10081030), (10, 8064824), (16, 5040515), (20, 4032412), (40, 2016206), (47, 1715920), (80, 1008103), (89, 906160), (94, 857960), (178, 453080), (188, 428980), (235, 343184), (241, 334640), (356, 226540), (376, 214490), (445, 181232), (470, 171592), (482, 167320), (712, 113270), (752, 107245), (890, 90616), (940, 85796), (964, 83660), (1205, 66928), (1424, 56635), (1780, 45308), (1880, 42898), (1928, 41830), (2410, 33464), (3560, 22654), (3760, 21449), (3856, 20915), (4183, 19280), (4820, 16732), (7120, 11327), (8366, 9640)]