20778855565

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{2117051}}^1$

素因数の和:2117220

約数の個数: 16

約数和(自身を含む): 27030519936

約数和(自身を除く): 6251664371

約数列:

[1, 5, 13, 65, 151, 755, 1963, 9815, 2117051, 10585255, 27521663, 137608315, 319674701, 1598373505, 4155771113, 20778855565]

約数ペア:

[(1, 20778855565), (5, 4155771113), (13, 1598373505), (65, 319674701), (151, 137608315), (755, 27521663), (1963, 10585255), (9815, 2117051)]