81801716

素因数分解:

$2^2\times {\mathrm{127}}^1\times {\mathrm{283}}^1\times {\mathrm{569}}^1$

素因数の和:983

約数の個数: 24

約数和(自身を含む): 145044480

約数和(自身を除く): 63242764

約数列:

[1, 2, 4, 127, 254, 283, 508, 566, 569, 1132, 1138, 2276, 35941, 71882, 72263, 143764, 144526, 161027, 289052, 322054, 644108, 20450429, 40900858, 81801716]

約数ペア:

[(1, 81801716), (2, 40900858), (4, 20450429), (127, 644108), (254, 322054), (283, 289052), (508, 161027), (566, 144526), (569, 143764), (1132, 72263), (1138, 71882), (2276, 35941)]