51720185

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1151}}^1$

素因数の和:1229

約数の個数: 32

約数和(自身を含む): 72990720

約数和(自身を除く): 21270535

約数列:

[1, 5, 11, 19, 43, 55, 95, 209, 215, 473, 817, 1045, 1151, 2365, 4085, 5755, 8987, 12661, 21869, 44935, 49493, 63305, 109345, 240559, 247465, 544423, 940367, 1202795, 2722115, 4701835, 10344037, 51720185]

約数ペア:

[(1, 51720185), (5, 10344037), (11, 4701835), (19, 2722115), (43, 1202795), (55, 940367), (95, 544423), (209, 247465), (215, 240559), (473, 109345), (817, 63305), (1045, 49493), (1151, 44935), (2365, 21869), (4085, 12661), (5755, 8987)]