645062

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{269}}^1$

素因数の和:391

約数の個数: 16

約数和(自身を含む): 1069200

約数和(自身を除く): 424138

約数列:

[1, 2, 11, 22, 109, 218, 269, 538, 1199, 2398, 2959, 5918, 29321, 58642, 322531, 645062]

約数ペア:

[(1, 645062), (2, 322531), (11, 58642), (22, 29321), (109, 5918), (218, 2959), (269, 2398), (538, 1199)]