79640816

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{115757}}^1$

素因数の和:115808

約数の個数: 20

約数和(自身を含む): 157893912

約数和(自身を除く): 78253096

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 115757, 231514, 463028, 926056, 1852112, 4977551, 9955102, 19910204, 39820408, 79640816]

約数ペア:

[(1, 79640816), (2, 39820408), (4, 19910204), (8, 9955102), (16, 4977551), (43, 1852112), (86, 926056), (172, 463028), (344, 231514), (688, 115757)]