81319585

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{4957}}^1$

素因数の和:5172

約数の個数: 16

約数和(自身を含む): 103880016

約数和(自身を除く): 22560431

約数列:

[1, 5, 17, 85, 193, 965, 3281, 4957, 16405, 24785, 84269, 421345, 956701, 4783505, 16263917, 81319585]

約数ペア:

[(1, 81319585), (5, 16263917), (17, 4783505), (85, 956701), (193, 421345), (965, 84269), (3281, 24785), (4957, 16405)]