257608052

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{381077}}^1$

素因数の和:381107

約数の個数: 18

約数和(自身を含む): 488160918

約数和(自身を除く): 230552866

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 381077, 762154, 1524308, 4954001, 9908002, 19816004, 64402013, 128804026, 257608052]

約数ペア:

[(1, 257608052), (2, 128804026), (4, 64402013), (13, 19816004), (26, 9908002), (52, 4954001), (169, 1524308), (338, 762154), (676, 381077)]