12481280

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{199}}^1$

素因数の和:234

約数の個数: 108

約数和(自身を含む): 34952400

約数和(自身を除く): 22471120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 199, 224, 245, 256, 280, 320, 392, 398, 448, 490, 560, 640, 784, 796, 896, 980, 995, 1120, 1280, 1393, 1568, 1592, 1792, 1960, 1990, 2240, 2786, 3136, 3184, 3920, 3980, 4480, 5572, 6272, 6368, 6965, 7840, 7960, 8960, 9751, 11144, 12544, 12736, 13930, 15680, 15920, 19502, 22288, 25472, 27860, 31360, 31840, 39004, 44576, 48755, 50944, 55720, 62720, 63680, 78008, 89152, 97510, 111440, 127360, 156016, 178304, 195020, 222880, 254720, 312032, 356608, 390040, 445760, 624064, 780080, 891520, 1248128, 1560160, 1783040, 2496256, 3120320, 6240640, 12481280]

約数ペア:

[(1, 12481280), (2, 6240640), (4, 3120320), (5, 2496256), (7, 1783040), (8, 1560160), (10, 1248128), (14, 891520), (16, 780080), (20, 624064), (28, 445760), (32, 390040), (35, 356608), (40, 312032), (49, 254720), (56, 222880), (64, 195020), (70, 178304), (80, 156016), (98, 127360), (112, 111440), (128, 97510), (140, 89152), (160, 78008), (196, 63680), (199, 62720), (224, 55720), (245, 50944), (256, 48755), (280, 44576), (320, 39004), (392, 31840), (398, 31360), (448, 27860), (490, 25472), (560, 22288), (640, 19502), (784, 15920), (796, 15680), (896, 13930), (980, 12736), (995, 12544), (1120, 11144), (1280, 9751), (1393, 8960), (1568, 7960), (1592, 7840), (1792, 6965), (1960, 6368), (1990, 6272), (2240, 5572), (2786, 4480), (3136, 3980), (3184, 3920)]