66816400

素因数分解:

$2^4\times 5^2\times 7^3\times {\mathrm{487}}^1$

素因数の和:526

約数の個数: 120

約数和(自身を含む): 187587200

約数和(自身を除く): 120770800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 175, 196, 200, 245, 280, 343, 350, 392, 400, 487, 490, 560, 686, 700, 784, 974, 980, 1225, 1372, 1400, 1715, 1948, 1960, 2435, 2450, 2744, 2800, 3409, 3430, 3896, 3920, 4870, 4900, 5488, 6818, 6860, 7792, 8575, 9740, 9800, 12175, 13636, 13720, 17045, 17150, 19480, 19600, 23863, 24350, 27272, 27440, 34090, 34300, 38960, 47726, 48700, 54544, 68180, 68600, 85225, 95452, 97400, 119315, 136360, 137200, 167041, 170450, 190904, 194800, 238630, 272720, 334082, 340900, 381808, 477260, 596575, 668164, 681800, 835205, 954520, 1193150, 1336328, 1363600, 1670410, 1909040, 2386300, 2672656, 3340820, 4176025, 4772600, 6681640, 8352050, 9545200, 13363280, 16704100, 33408200, 66816400]

約数ペア:

[(1, 66816400), (2, 33408200), (4, 16704100), (5, 13363280), (7, 9545200), (8, 8352050), (10, 6681640), (14, 4772600), (16, 4176025), (20, 3340820), (25, 2672656), (28, 2386300), (35, 1909040), (40, 1670410), (49, 1363600), (50, 1336328), (56, 1193150), (70, 954520), (80, 835205), (98, 681800), (100, 668164), (112, 596575), (140, 477260), (175, 381808), (196, 340900), (200, 334082), (245, 272720), (280, 238630), (343, 194800), (350, 190904), (392, 170450), (400, 167041), (487, 137200), (490, 136360), (560, 119315), (686, 97400), (700, 95452), (784, 85225), (974, 68600), (980, 68180), (1225, 54544), (1372, 48700), (1400, 47726), (1715, 38960), (1948, 34300), (1960, 34090), (2435, 27440), (2450, 27272), (2744, 24350), (2800, 23863), (3409, 19600), (3430, 19480), (3896, 17150), (3920, 17045), (4870, 13720), (4900, 13636), (5488, 12175), (6818, 9800), (6860, 9740), (7792, 8575)]