20751205

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1\times {\mathrm{389}}^1$

素因数の和:668

約数の個数: 16

約数和(自身を含む): 25608960

約数和(自身を除く): 4857755

約数列:

[1, 5, 47, 227, 235, 389, 1135, 1945, 10669, 18283, 53345, 88303, 91415, 441515, 4150241, 20751205]

約数ペア:

[(1, 20751205), (5, 4150241), (47, 441515), (227, 91415), (235, 88303), (389, 53345), (1135, 18283), (1945, 10669)]