257252012

素因数分解:

$2^2\times {\mathrm{31}}^2\times {\mathrm{66923}}^1$

素因数の和:66989

約数の個数: 18

約数和(自身を含む): 465188724

約数和(自身を除く): 207936712

約数列:

[1, 2, 4, 31, 62, 124, 961, 1922, 3844, 66923, 133846, 267692, 2074613, 4149226, 8298452, 64313003, 128626006, 257252012]

約数ペア:

[(1, 257252012), (2, 128626006), (4, 64313003), (31, 8298452), (62, 4149226), (124, 2074613), (961, 267692), (1922, 133846), (3844, 66923)]