66356420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{255217}}^1$

素因数の和:255239

約数の個数: 24

約数和(自身を含む): 150068184

約数和(自身を除く): 83711764

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 255217, 510434, 1020868, 1276085, 2552170, 3317821, 5104340, 6635642, 13271284, 16589105, 33178210, 66356420]

約数ペア:

[(1, 66356420), (2, 33178210), (4, 16589105), (5, 13271284), (10, 6635642), (13, 5104340), (20, 3317821), (26, 2552170), (52, 1276085), (65, 1020868), (130, 510434), (260, 255217)]