73661840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{661}}^1$

素因数の和:880

約数の個数: 80

約数和(自身を含む): 197011200

約数和(自身を除く): 123349360

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, 661, 796, 995, 1322, 1393, 1592, 1990, 2644, 2786, 3184, 3305, 3980, 4627, 5288, 5572, 6610, 6965, 7960, 9254, 10576, 11144, 13220, 13930, 15920, 18508, 22288, 23135, 26440, 27860, 37016, 46270, 52880, 55720, 74032, 92540, 111440, 131539, 185080, 263078, 370160, 526156, 657695, 920773, 1052312, 1315390, 1841546, 2104624, 2630780, 3683092, 4603865, 5261560, 7366184, 9207730, 10523120, 14732368, 18415460, 36830920, 73661840]

約数ペア:

[(1, 73661840), (2, 36830920), (4, 18415460), (5, 14732368), (7, 10523120), (8, 9207730), (10, 7366184), (14, 5261560), (16, 4603865), (20, 3683092), (28, 2630780), (35, 2104624), (40, 1841546), (56, 1315390), (70, 1052312), (80, 920773), (112, 657695), (140, 526156), (199, 370160), (280, 263078), (398, 185080), (560, 131539), (661, 111440), (796, 92540), (995, 74032), (1322, 55720), (1393, 52880), (1592, 46270), (1990, 37016), (2644, 27860), (2786, 26440), (3184, 23135), (3305, 22288), (3980, 18508), (4627, 15920), (5288, 13930), (5572, 13220), (6610, 11144), (6965, 10576), (7960, 9254)]