257589360

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{51109}}^1$

素因数の和:51135

約数の個数: 120

約数和(自身を含む): 988671840

約数和(自身を除く): 731082480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 51109, 102218, 153327, 204436, 255545, 306654, 357763, 408872, 459981, 511090, 613308, 715526, 766635, 817744, 919962, 1022180, 1073289, 1226616, 1431052, 1533270, 1788815, 1839924, 2044360, 2146578, 2299905, 2453232, 2862104, 3066540, 3219867, 3577630, 3679848, 4088720, 4293156, 4599810, 5366445, 5724208, 6133080, 6439734, 7155260, 7359696, 8586312, 9199620, 10732890, 12266160, 12879468, 14310520, 16099335, 17172624, 18399240, 21465780, 25758936, 28621040, 32198670, 36798480, 42931560, 51517872, 64397340, 85863120, 128794680, 257589360]

約数ペア:

[(1, 257589360), (2, 128794680), (3, 85863120), (4, 64397340), (5, 51517872), (6, 42931560), (7, 36798480), (8, 32198670), (9, 28621040), (10, 25758936), (12, 21465780), (14, 18399240), (15, 17172624), (16, 16099335), (18, 14310520), (20, 12879468), (21, 12266160), (24, 10732890), (28, 9199620), (30, 8586312), (35, 7359696), (36, 7155260), (40, 6439734), (42, 6133080), (45, 5724208), (48, 5366445), (56, 4599810), (60, 4293156), (63, 4088720), (70, 3679848), (72, 3577630), (80, 3219867), (84, 3066540), (90, 2862104), (105, 2453232), (112, 2299905), (120, 2146578), (126, 2044360), (140, 1839924), (144, 1788815), (168, 1533270), (180, 1431052), (210, 1226616), (240, 1073289), (252, 1022180), (280, 919962), (315, 817744), (336, 766635), (360, 715526), (420, 613308), (504, 511090), (560, 459981), (630, 408872), (720, 357763), (840, 306654), (1008, 255545), (1260, 204436), (1680, 153327), (2520, 102218), (5040, 51109)]