2005403408

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{1216871}}^1$

素因数の和:1216982

約数の個数: 20

約数和(自身を含む): 3923195328

約数和(自身を除く): 1917791920

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 1216871, 2433742, 4867484, 9734968, 19469936, 125337713, 250675426, 501350852, 1002701704, 2005403408]

約数ペア:

[(1, 2005403408), (2, 1002701704), (4, 501350852), (8, 250675426), (16, 125337713), (103, 19469936), (206, 9734968), (412, 4867484), (824, 2433742), (1648, 1216871)]