81964090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{630493}}^1$

素因数の和:630513

約数の個数: 16

約数和(自身を含む): 158884488

約数和(自身を除く): 76920398

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 630493, 1260986, 3152465, 6304930, 8196409, 16392818, 40982045, 81964090]

約数ペア:

[(1, 81964090), (2, 40982045), (5, 16392818), (10, 8196409), (13, 6304930), (26, 3152465), (65, 1260986), (130, 630493)]