1689655

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{991}}^1$

素因数の和:1038

約数の個数: 16

約数和(自身を含む): 2285568

約数和(自身を除く): 595913

約数列:

[1, 5, 11, 31, 55, 155, 341, 991, 1705, 4955, 10901, 30721, 54505, 153605, 337931, 1689655]

約数ペア:

[(1, 1689655), (5, 337931), (11, 153605), (31, 54505), (55, 30721), (155, 10901), (341, 4955), (991, 1705)]