256628414

素因数分解:

$2^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{177967}}^1$

素因数の和:178079

約数の個数: 16

約数和(自身を含む): 444208128

約数和(自身を除く): 187579714

約数列:

[1, 2, 7, 14, 103, 206, 721, 1442, 177967, 355934, 1245769, 2491538, 18330601, 36661202, 128314207, 256628414]

約数ペア:

[(1, 256628414), (2, 128314207), (7, 36661202), (14, 18330601), (103, 2491538), (206, 1245769), (721, 355934), (1442, 177967)]