1255148720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{199}}^1\times {\mathrm{1609}}^1$

素因数の和:1835

約数の個数: 120

約数和(自身を含む): 3413844000

約数和(自身を除く): 2158695280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 199, 245, 280, 392, 398, 490, 560, 784, 796, 980, 995, 1393, 1592, 1609, 1960, 1990, 2786, 3184, 3218, 3920, 3980, 5572, 6436, 6965, 7960, 8045, 9751, 11144, 11263, 12872, 13930, 15920, 16090, 19502, 22288, 22526, 25744, 27860, 32180, 39004, 45052, 48755, 55720, 56315, 64360, 78008, 78841, 90104, 97510, 111440, 112630, 128720, 156016, 157682, 180208, 195020, 225260, 315364, 320191, 390040, 394205, 450520, 630728, 640382, 780080, 788410, 901040, 1261456, 1280764, 1576820, 1600955, 2241337, 2561528, 3153640, 3201910, 4482674, 5123056, 6307280, 6403820, 8965348, 11206685, 12807640, 15689359, 17930696, 22413370, 25615280, 31378718, 35861392, 44826740, 62757436, 78446795, 89653480, 125514872, 156893590, 179306960, 251029744, 313787180, 627574360, 1255148720]

約数ペア:

[(1, 1255148720), (2, 627574360), (4, 313787180), (5, 251029744), (7, 179306960), (8, 156893590), (10, 125514872), (14, 89653480), (16, 78446795), (20, 62757436), (28, 44826740), (35, 35861392), (40, 31378718), (49, 25615280), (56, 22413370), (70, 17930696), (80, 15689359), (98, 12807640), (112, 11206685), (140, 8965348), (196, 6403820), (199, 6307280), (245, 5123056), (280, 4482674), (392, 3201910), (398, 3153640), (490, 2561528), (560, 2241337), (784, 1600955), (796, 1576820), (980, 1280764), (995, 1261456), (1393, 901040), (1592, 788410), (1609, 780080), (1960, 640382), (1990, 630728), (2786, 450520), (3184, 394205), (3218, 390040), (3920, 320191), (3980, 315364), (5572, 225260), (6436, 195020), (6965, 180208), (7960, 157682), (8045, 156016), (9751, 128720), (11144, 112630), (11263, 111440), (12872, 97510), (13930, 90104), (15920, 78841), (16090, 78008), (19502, 64360), (22288, 56315), (22526, 55720), (25744, 48755), (27860, 45052), (32180, 39004)]