64398790

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{17839}}^1$

素因数の和:17884

約数の個数: 24

約数和(自身を含む): 122346720

約数和(自身を除く): 57947930

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 361, 722, 1805, 3610, 17839, 35678, 89195, 178390, 338941, 677882, 1694705, 3389410, 6439879, 12879758, 32199395, 64398790]

約数ペア:

[(1, 64398790), (2, 32199395), (5, 12879758), (10, 6439879), (19, 3389410), (38, 1694705), (95, 677882), (190, 338941), (361, 178390), (722, 89195), (1805, 35678), (3610, 17839)]