81538288

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{392011}}^1$

素因数の和:392032

約数の個数: 20

約数和(自身を含む): 170133208

約数和(自身を除く): 88594920

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 392011, 784022, 1568044, 3136088, 5096143, 6272176, 10192286, 20384572, 40769144, 81538288]

約数ペア:

[(1, 81538288), (2, 40769144), (4, 20384572), (8, 10192286), (13, 6272176), (16, 5096143), (26, 3136088), (52, 1568044), (104, 784022), (208, 392011)]