81749564

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{14423}}^1$

素因数の和:14549

約数の個数: 24

約数和(自身を含む): 155490720

約数和(自身を除く): 73741156

約数列:

[1, 2, 4, 13, 26, 52, 109, 218, 436, 1417, 2834, 5668, 14423, 28846, 57692, 187499, 374998, 749996, 1572107, 3144214, 6288428, 20437391, 40874782, 81749564]

約数ペア:

[(1, 81749564), (2, 40874782), (4, 20437391), (13, 6288428), (26, 3144214), (52, 1572107), (109, 749996), (218, 374998), (436, 187499), (1417, 57692), (2834, 28846), (5668, 14423)]