257666314

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{383}}^1\times {\mathrm{421}}^1$

素因数の和:870

約数の個数: 32

約数和(自身を含む): 420028416

約数和(自身を除く): 162362102

約数列:

[1, 2, 17, 34, 47, 94, 383, 421, 766, 799, 842, 1598, 6511, 7157, 13022, 14314, 18001, 19787, 36002, 39574, 161243, 306017, 322486, 336379, 612034, 672758, 2741131, 5482262, 7578421, 15156842, 128833157, 257666314]

約数ペア:

[(1, 257666314), (2, 128833157), (17, 15156842), (34, 7578421), (47, 5482262), (94, 2741131), (383, 672758), (421, 612034), (766, 336379), (799, 322486), (842, 306017), (1598, 161243), (6511, 39574), (7157, 36002), (13022, 19787), (14314, 18001)]