81162720

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{359}}^1$

素因数の和:537

約数の個数: 144

約数和(自身を含む): 279508320

約数和(自身を除く): 198345600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 157, 160, 180, 240, 288, 314, 359, 360, 471, 480, 628, 718, 720, 785, 942, 1077, 1256, 1413, 1436, 1440, 1570, 1795, 1884, 2154, 2355, 2512, 2826, 2872, 3140, 3231, 3590, 3768, 4308, 4710, 5024, 5385, 5652, 5744, 6280, 6462, 7065, 7180, 7536, 8616, 9420, 10770, 11304, 11488, 12560, 12924, 14130, 14360, 15072, 16155, 17232, 18840, 21540, 22608, 25120, 25848, 28260, 28720, 32310, 34464, 37680, 43080, 45216, 51696, 56363, 56520, 57440, 64620, 75360, 86160, 103392, 112726, 113040, 129240, 169089, 172320, 225452, 226080, 258480, 281815, 338178, 450904, 507267, 516960, 563630, 676356, 845445, 901808, 1014534, 1127260, 1352712, 1690890, 1803616, 2029068, 2254520, 2536335, 2705424, 3381780, 4058136, 4509040, 5072670, 5410848, 6763560, 8116272, 9018080, 10145340, 13527120, 16232544, 20290680, 27054240, 40581360, 81162720]

約数ペア:

[(1, 81162720), (2, 40581360), (3, 27054240), (4, 20290680), (5, 16232544), (6, 13527120), (8, 10145340), (9, 9018080), (10, 8116272), (12, 6763560), (15, 5410848), (16, 5072670), (18, 4509040), (20, 4058136), (24, 3381780), (30, 2705424), (32, 2536335), (36, 2254520), (40, 2029068), (45, 1803616), (48, 1690890), (60, 1352712), (72, 1127260), (80, 1014534), (90, 901808), (96, 845445), (120, 676356), (144, 563630), (157, 516960), (160, 507267), (180, 450904), (240, 338178), (288, 281815), (314, 258480), (359, 226080), (360, 225452), (471, 172320), (480, 169089), (628, 129240), (718, 113040), (720, 112726), (785, 103392), (942, 86160), (1077, 75360), (1256, 64620), (1413, 57440), (1436, 56520), (1440, 56363), (1570, 51696), (1795, 45216), (1884, 43080), (2154, 37680), (2355, 34464), (2512, 32310), (2826, 28720), (2872, 28260), (3140, 25848), (3231, 25120), (3590, 22608), (3768, 21540), (4308, 18840), (4710, 17232), (5024, 16155), (5385, 15072), (5652, 14360), (5744, 14130), (6280, 12924), (6462, 12560), (7065, 11488), (7180, 11304), (7536, 10770), (8616, 9420)]