491782

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:231

約数の個数: 16

約数和(自身を含む): 781200

約数和(自身を除く): 289418

約数列:

[1, 2, 29, 58, 61, 122, 139, 278, 1769, 3538, 4031, 8062, 8479, 16958, 245891, 491782]

約数ペア:

[(1, 491782), (2, 245891), (29, 16958), (58, 8479), (61, 8062), (122, 4031), (139, 3538), (278, 1769)]