51360820

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{7487}}^1$

素因数の和:7517

約数の個数: 48

約数和(自身を含む): 125798400

約数和(自身を除く): 74437580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 7487, 14974, 29948, 37435, 52409, 74870, 104818, 149740, 209636, 262045, 366863, 524090, 733726, 1048180, 1467452, 1834315, 2568041, 3668630, 5136082, 7337260, 10272164, 12840205, 25680410, 51360820]

約数ペア:

[(1, 51360820), (2, 25680410), (4, 12840205), (5, 10272164), (7, 7337260), (10, 5136082), (14, 3668630), (20, 2568041), (28, 1834315), (35, 1467452), (49, 1048180), (70, 733726), (98, 524090), (140, 366863), (196, 262045), (245, 209636), (343, 149740), (490, 104818), (686, 74870), (980, 52409), (1372, 37435), (1715, 29948), (3430, 14974), (6860, 7487)]