6681640

素因数分解:

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

素因数の和:519

約数の個数: 64

約数和(自身を含む): 17568000

約数和(自身を除く): 10886360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 487, 490, 686, 974, 980, 1372, 1715, 1948, 1960, 2435, 2744, 3409, 3430, 3896, 4870, 6818, 6860, 9740, 13636, 13720, 17045, 19480, 23863, 27272, 34090, 47726, 68180, 95452, 119315, 136360, 167041, 190904, 238630, 334082, 477260, 668164, 835205, 954520, 1336328, 1670410, 3340820, 6681640]

約数ペア:

[(1, 6681640), (2, 3340820), (4, 1670410), (5, 1336328), (7, 954520), (8, 835205), (10, 668164), (14, 477260), (20, 334082), (28, 238630), (35, 190904), (40, 167041), (49, 136360), (56, 119315), (70, 95452), (98, 68180), (140, 47726), (196, 34090), (245, 27272), (280, 23863), (343, 19480), (392, 17045), (487, 13720), (490, 13636), (686, 9740), (974, 6860), (980, 6818), (1372, 4870), (1715, 3896), (1948, 3430), (1960, 3409), (2435, 2744)]