166660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1$

素因数の和:663

約数の個数: 24

約数和(自身を含む): 377496

約数和(自身を除く): 210836

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 641, 1282, 2564, 3205, 6410, 8333, 12820, 16666, 33332, 41665, 83330, 166660]

約数ペア:

[(1, 166660), (2, 83330), (4, 41665), (5, 33332), (10, 16666), (13, 12820), (20, 8333), (26, 6410), (52, 3205), (65, 2564), (130, 1282), (260, 641)]