257172734

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{709}}^1\times {\mathrm{1993}}^1$

素因数の和:2724

約数の個数: 32

約数和(自身を含む): 475688640

約数和(自身を除く): 218515906

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 709, 1418, 1993, 3986, 4963, 9217, 9926, 13951, 18434, 25909, 27902, 51818, 64519, 129038, 181363, 362726, 1413037, 2826074, 9891259, 18369481, 19782518, 36738962, 128586367, 257172734]

約数ペア:

[(1, 257172734), (2, 128586367), (7, 36738962), (13, 19782518), (14, 18369481), (26, 9891259), (91, 2826074), (182, 1413037), (709, 362726), (1418, 181363), (1993, 129038), (3986, 64519), (4963, 51818), (9217, 27902), (9926, 25909), (13951, 18434)]