80645776

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{70991}}^1$

素因数の和:71070

約数の個数: 20

約数和(自身を含む): 158454144

約数和(自身を除く): 77808368

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 70991, 141982, 283964, 567928, 1135856, 5040361, 10080722, 20161444, 40322888, 80645776]

約数ペア:

[(1, 80645776), (2, 40322888), (4, 20161444), (8, 10080722), (16, 5040361), (71, 1135856), (142, 567928), (284, 283964), (568, 141982), (1136, 70991)]