256506256

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{317}}^1\times {\mathrm{491}}^1$

素因数の和:919

約数の個数: 40

約数和(自身を含む): 504414144

約数和(自身を除く): 247907888

約数列:

[1, 2, 4, 8, 16, 103, 206, 317, 412, 491, 634, 824, 982, 1268, 1648, 1964, 2536, 3928, 5072, 7856, 32651, 50573, 65302, 101146, 130604, 155647, 202292, 261208, 311294, 404584, 522416, 622588, 809168, 1245176, 2490352, 16031641, 32063282, 64126564, 128253128, 256506256]

約数ペア:

[(1, 256506256), (2, 128253128), (4, 64126564), (8, 32063282), (16, 16031641), (103, 2490352), (206, 1245176), (317, 809168), (412, 622588), (491, 522416), (634, 404584), (824, 311294), (982, 261208), (1268, 202292), (1648, 155647), (1964, 130604), (2536, 101146), (3928, 65302), (5072, 50573), (7856, 32651)]