68638544

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{329993}}^1$

素因数の和:330014

約数の個数: 20

約数和(自身を含む): 143217396

約数和(自身を除く): 74578852

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 329993, 659986, 1319972, 2639944, 4289909, 5279888, 8579818, 17159636, 34319272, 68638544]

約数ペア:

[(1, 68638544), (2, 34319272), (4, 17159636), (8, 8579818), (13, 5279888), (16, 4289909), (26, 2639944), (52, 1319972), (104, 659986), (208, 329993)]