290640056

素因数分解:

$2^3\times 7^1\times {\mathrm{5190001}}^1$

素因数の和:5190014

約数の個数: 16

約数和(自身を含む): 622800240

約数和(自身を除く): 332160184

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 5190001, 10380002, 20760004, 36330007, 41520008, 72660014, 145320028, 290640056]

約数ペア:

[(1, 290640056), (2, 145320028), (4, 72660014), (7, 41520008), (8, 36330007), (14, 20760004), (28, 10380002), (56, 5190001)]