1287788012

素因数分解:

$2^2\times 7^3\times {\mathrm{17}}^1\times {\mathrm{55213}}^1$

素因数の和:55255

約数の個数: 48

約数和(自身を含む): 2782785600

約数和(自身を除く): 1494997588

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 49, 68, 98, 119, 196, 238, 343, 476, 686, 833, 1372, 1666, 3332, 5831, 11662, 23324, 55213, 110426, 220852, 386491, 772982, 938621, 1545964, 1877242, 2705437, 3754484, 5410874, 6570347, 10821748, 13140694, 18938059, 26281388, 37876118, 45992429, 75752236, 91984858, 183969716, 321947003, 643894006, 1287788012]

約数ペア:

[(1, 1287788012), (2, 643894006), (4, 321947003), (7, 183969716), (14, 91984858), (17, 75752236), (28, 45992429), (34, 37876118), (49, 26281388), (68, 18938059), (98, 13140694), (119, 10821748), (196, 6570347), (238, 5410874), (343, 3754484), (476, 2705437), (686, 1877242), (833, 1545964), (1372, 938621), (1666, 772982), (3332, 386491), (5831, 220852), (11662, 110426), (23324, 55213)]