256831498

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{317}}^1\times {\mathrm{5261}}^1$

素因数の和:5598

約数の個数: 32

約数和(自身を含む): 481915008

約数和(自身を除く): 225083510

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 317, 634, 2219, 3487, 4438, 5261, 6974, 10522, 24409, 36827, 48818, 57871, 73654, 115742, 405097, 810194, 1667737, 3335474, 11674159, 18345107, 23348318, 36690214, 128415749, 256831498]

約数ペア:

[(1, 256831498), (2, 128415749), (7, 36690214), (11, 23348318), (14, 18345107), (22, 11674159), (77, 3335474), (154, 1667737), (317, 810194), (634, 405097), (2219, 115742), (3487, 73654), (4438, 57871), (5261, 48818), (6974, 36827), (10522, 24409)]