257001965

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{33617}}^1$

素因数の和:33772

約数の個数: 16

約数和(自身を含む): 338869440

約数和(自身を除く): 81867475

約数列:

[1, 5, 11, 55, 139, 695, 1529, 7645, 33617, 168085, 369787, 1848935, 4672763, 23363815, 51400393, 257001965]

約数ペア:

[(1, 257001965), (5, 51400393), (11, 23363815), (55, 4672763), (139, 1848935), (695, 369787), (1529, 168085), (7645, 33617)]