291213220

素因数分解:

$2^2\times 5^1\times {\mathrm{14560661}}^1$

素因数の和:14560670

約数の個数: 12

約数和(自身を含む): 611547804

約数和(自身を除く): 320334584

約数列:

[1, 2, 4, 5, 10, 20, 14560661, 29121322, 58242644, 72803305, 145606610, 291213220]

約数ペア:

[(1, 291213220), (2, 145606610), (4, 72803305), (5, 58242644), (10, 29121322), (20, 14560661)]