68432380

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{31391}}^1$

素因数の和:31509

約数の個数: 24

約数和(自身を含む): 145031040

約数和(自身を除く): 76598660

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 31391, 62782, 125564, 156955, 313910, 627820, 3421619, 6843238, 13686476, 17108095, 34216190, 68432380]

約数ペア:

[(1, 68432380), (2, 34216190), (4, 17108095), (5, 13686476), (10, 6843238), (20, 3421619), (109, 627820), (218, 313910), (436, 156955), (545, 125564), (1090, 62782), (2180, 31391)]