20538521605

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1867}}^1\times {\mathrm{10139}}^1$

素因数の和:12049

約数の個数: 32

約数和(自身を含む): 29094174720

約数和(自身を除く): 8555653115

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 1867, 9335, 10139, 13069, 50695, 57877, 65345, 70973, 289385, 314309, 354865, 405139, 1571545, 2025695, 2200163, 11000815, 18929513, 94647565, 132506591, 586814903, 662532955, 2934074515, 4107704321, 20538521605]

約数ペア:

[(1, 20538521605), (5, 4107704321), (7, 2934074515), (31, 662532955), (35, 586814903), (155, 132506591), (217, 94647565), (1085, 18929513), (1867, 11000815), (9335, 2200163), (10139, 2025695), (13069, 1571545), (50695, 405139), (57877, 354865), (65345, 314309), (70973, 289385)]