66755728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{320941}}^1$

素因数の和:320962

約数の個数: 20

約数和(自身を含む): 139288828

約数和(自身を除く): 72533100

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 320941, 641882, 1283764, 2567528, 4172233, 5135056, 8344466, 16688932, 33377864, 66755728]

約数ペア:

[(1, 66755728), (2, 33377864), (4, 16688932), (8, 8344466), (13, 5135056), (16, 4172233), (26, 2567528), (52, 1283764), (104, 641882), (208, 320941)]