161404920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{751}}^1$

素因数の和:970

約数の個数: 128

約数和(自身を含む): 541440000

約数和(自身を除く): 380035080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 199, 216, 270, 360, 398, 540, 597, 751, 796, 995, 1080, 1194, 1502, 1592, 1791, 1990, 2253, 2388, 2985, 3004, 3582, 3755, 3980, 4506, 4776, 5373, 5970, 6008, 6759, 7164, 7510, 7960, 8955, 9012, 10746, 11265, 11940, 13518, 14328, 15020, 17910, 18024, 20277, 21492, 22530, 23880, 26865, 27036, 30040, 33795, 35820, 40554, 42984, 45060, 53730, 54072, 67590, 71640, 81108, 90120, 101385, 107460, 135180, 149449, 162216, 202770, 214920, 270360, 298898, 405540, 448347, 597796, 747245, 811080, 896694, 1195592, 1345041, 1494490, 1793388, 2241735, 2690082, 2988980, 3586776, 4035123, 4483470, 5380164, 5977960, 6725205, 8070246, 8966940, 10760328, 13450410, 16140492, 17933880, 20175615, 26900820, 32280984, 40351230, 53801640, 80702460, 161404920]

約数ペア:

[(1, 161404920), (2, 80702460), (3, 53801640), (4, 40351230), (5, 32280984), (6, 26900820), (8, 20175615), (9, 17933880), (10, 16140492), (12, 13450410), (15, 10760328), (18, 8966940), (20, 8070246), (24, 6725205), (27, 5977960), (30, 5380164), (36, 4483470), (40, 4035123), (45, 3586776), (54, 2988980), (60, 2690082), (72, 2241735), (90, 1793388), (108, 1494490), (120, 1345041), (135, 1195592), (180, 896694), (199, 811080), (216, 747245), (270, 597796), (360, 448347), (398, 405540), (540, 298898), (597, 270360), (751, 214920), (796, 202770), (995, 162216), (1080, 149449), (1194, 135180), (1502, 107460), (1592, 101385), (1791, 90120), (1990, 81108), (2253, 71640), (2388, 67590), (2985, 54072), (3004, 53730), (3582, 45060), (3755, 42984), (3980, 40554), (4506, 35820), (4776, 33795), (5373, 30040), (5970, 27036), (6008, 26865), (6759, 23880), (7164, 22530), (7510, 21492), (7960, 20277), (8955, 18024), (9012, 17910), (10746, 15020), (11265, 14328), (11940, 13518)]