81347604

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{2647}}^1$

素因数の和:2864

約数の個数: 48

約数和(自身を含む): 205527168

約数和(自身を除く): 124179564

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 197, 394, 591, 788, 1182, 2364, 2561, 2647, 5122, 5294, 7683, 7941, 10244, 10588, 15366, 15882, 30732, 31764, 34411, 68822, 103233, 137644, 206466, 412932, 521459, 1042918, 1564377, 2085836, 3128754, 6257508, 6778967, 13557934, 20336901, 27115868, 40673802, 81347604]

約数ペア:

[(1, 81347604), (2, 40673802), (3, 27115868), (4, 20336901), (6, 13557934), (12, 6778967), (13, 6257508), (26, 3128754), (39, 2085836), (52, 1564377), (78, 1042918), (156, 521459), (197, 412932), (394, 206466), (591, 137644), (788, 103233), (1182, 68822), (2364, 34411), (2561, 31764), (2647, 30732), (5122, 15882), (5294, 15366), (7683, 10588), (7941, 10244)]