1788474820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{8129431}}^1$

素因数の和:8129451

約数の個数: 24

約数和(自身を含む): 4097233728

約数和(自身を除く): 2308758908

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 8129431, 16258862, 32517724, 40647155, 81294310, 89423741, 162588620, 178847482, 357694964, 447118705, 894237410, 1788474820]

約数ペア:

[(1, 1788474820), (2, 894237410), (4, 447118705), (5, 357694964), (10, 178847482), (11, 162588620), (20, 89423741), (22, 81294310), (44, 40647155), (55, 32517724), (110, 16258862), (220, 8129431)]