161197960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{263}}^1$

素因数の和:491

約数の個数: 128

約数和(自身を含む): 456192000

約数和(自身を除く): 294994040

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 199, 220, 263, 280, 308, 385, 398, 440, 526, 616, 770, 796, 995, 1052, 1315, 1393, 1540, 1592, 1841, 1990, 2104, 2189, 2630, 2786, 2893, 3080, 3682, 3980, 4378, 5260, 5572, 5786, 6965, 7364, 7960, 8756, 9205, 10520, 10945, 11144, 11572, 13930, 14465, 14728, 15323, 17512, 18410, 20251, 21890, 23144, 27860, 28930, 30646, 36820, 40502, 43780, 52337, 55720, 57860, 61292, 73640, 76615, 81004, 87560, 101255, 104674, 115720, 122584, 153230, 162008, 202510, 209348, 261685, 306460, 366359, 405020, 418696, 523370, 575707, 612920, 732718, 810040, 1046740, 1151414, 1465436, 1831795, 2093480, 2302828, 2878535, 2930872, 3663590, 4029949, 4605656, 5757070, 7327180, 8059898, 11514140, 14654360, 16119796, 20149745, 23028280, 32239592, 40299490, 80598980, 161197960]

約数ペア:

[(1, 161197960), (2, 80598980), (4, 40299490), (5, 32239592), (7, 23028280), (8, 20149745), (10, 16119796), (11, 14654360), (14, 11514140), (20, 8059898), (22, 7327180), (28, 5757070), (35, 4605656), (40, 4029949), (44, 3663590), (55, 2930872), (56, 2878535), (70, 2302828), (77, 2093480), (88, 1831795), (110, 1465436), (140, 1151414), (154, 1046740), (199, 810040), (220, 732718), (263, 612920), (280, 575707), (308, 523370), (385, 418696), (398, 405020), (440, 366359), (526, 306460), (616, 261685), (770, 209348), (796, 202510), (995, 162008), (1052, 153230), (1315, 122584), (1393, 115720), (1540, 104674), (1592, 101255), (1841, 87560), (1990, 81004), (2104, 76615), (2189, 73640), (2630, 61292), (2786, 57860), (2893, 55720), (3080, 52337), (3682, 43780), (3980, 40502), (4378, 36820), (5260, 30646), (5572, 28930), (5786, 27860), (6965, 23144), (7364, 21890), (7960, 20251), (8756, 18410), (9205, 17512), (10520, 15323), (10945, 14728), (11144, 14465), (11572, 13930)]