641572144

素因数分解:

$2^4\times {\mathrm{193}}^1\times {\mathrm{207763}}^1$

素因数の和:207964

約数の個数: 20

約数和(自身を含む): 1249492696

約数和(自身を除く): 607920552

約数列:

[1, 2, 4, 8, 16, 193, 386, 772, 1544, 3088, 207763, 415526, 831052, 1662104, 3324208, 40098259, 80196518, 160393036, 320786072, 641572144]

約数ペア:

[(1, 641572144), (2, 320786072), (4, 160393036), (8, 80196518), (16, 40098259), (193, 3324208), (386, 1662104), (772, 831052), (1544, 415526), (3088, 207763)]