208690816

素因数分解:

$2^7\times {\mathrm{211}}^1\times {\mathrm{7727}}^1$

素因数の和:7952

約数の個数: 32

約数和(自身を含む): 417775680

約数和(自身を除く): 209084864

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 211, 422, 844, 1688, 3376, 6752, 7727, 13504, 15454, 27008, 30908, 61816, 123632, 247264, 494528, 989056, 1630397, 3260794, 6521588, 13043176, 26086352, 52172704, 104345408, 208690816]

約数ペア:

[(1, 208690816), (2, 104345408), (4, 52172704), (8, 26086352), (16, 13043176), (32, 6521588), (64, 3260794), (128, 1630397), (211, 989056), (422, 494528), (844, 247264), (1688, 123632), (3376, 61816), (6752, 30908), (7727, 27008), (13504, 15454)]