68661580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{264083}}^1$

素因数の和:264105

約数の個数: 24

約数和(自身を含む): 155281392

約数和(自身を除く): 86619812

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 264083, 528166, 1056332, 1320415, 2640830, 3433079, 5281660, 6866158, 13732316, 17165395, 34330790, 68661580]

約数ペア:

[(1, 68661580), (2, 34330790), (4, 17165395), (5, 13732316), (10, 6866158), (13, 5281660), (20, 3433079), (26, 2640830), (52, 1320415), (65, 1056332), (130, 528166), (260, 264083)]