7820040057

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{421}}^1\times {\mathrm{1279}}^1$

素因数の和:1853

約数の個数: 32

約数和(自身を含む): 10785914880

約数和(自身を除く): 2965874823

約数列:

[1, 3, 47, 103, 141, 309, 421, 1263, 1279, 3837, 4841, 14523, 19787, 43363, 59361, 60113, 130089, 131737, 180339, 395211, 538459, 1615377, 2038061, 6114183, 6191639, 18574917, 25307573, 55461277, 75922719, 166383831, 2606680019, 7820040057]

約数ペア:

[(1, 7820040057), (3, 2606680019), (47, 166383831), (103, 75922719), (141, 55461277), (309, 25307573), (421, 18574917), (1263, 6191639), (1279, 6114183), (3837, 2038061), (4841, 1615377), (14523, 538459), (19787, 395211), (43363, 180339), (59361, 131737), (60113, 130089)]