20565432865

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{133157}}^1$

素因数の和:133281

約数の個数: 32

約数和(自身を含む): 27611642880

約数和(自身を除く): 7046210015

約数列:

[1, 5, 17, 23, 79, 85, 115, 391, 395, 1343, 1817, 1955, 6715, 9085, 30889, 133157, 154445, 665785, 2263669, 3062611, 10519403, 11318345, 15313055, 52064387, 52597015, 178829851, 241946269, 260321935, 894149255, 1209731345, 4113086573, 20565432865]

約数ペア:

[(1, 20565432865), (5, 4113086573), (17, 1209731345), (23, 894149255), (79, 260321935), (85, 241946269), (115, 178829851), (391, 52597015), (395, 52064387), (1343, 15313055), (1817, 11318345), (1955, 10519403), (6715, 3062611), (9085, 2263669), (30889, 665785), (133157, 154445)]