66443728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{319441}}^1$

素因数の和:319462

約数の個数: 20

約数和(自身を含む): 138637828

約数和(自身を除く): 72194100

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 319441, 638882, 1277764, 2555528, 4152733, 5111056, 8305466, 16610932, 33221864, 66443728]

約数ペア:

[(1, 66443728), (2, 33221864), (4, 16610932), (8, 8305466), (13, 5111056), (16, 4152733), (26, 2555528), (52, 1277764), (104, 638882), (208, 319441)]