2781728176

素因数分解:

$2^4\times {\mathrm{1223}}^1\times {\mathrm{142157}}^1$

素因数の和:143388

約数の個数: 20

約数和(自身を含む): 5394043152

約数和(自身を除く): 2612314976

約数列:

[1, 2, 4, 8, 16, 1223, 2446, 4892, 9784, 19568, 142157, 284314, 568628, 1137256, 2274512, 173858011, 347716022, 695432044, 1390864088, 2781728176]

約数ペア:

[(1, 2781728176), (2, 1390864088), (4, 695432044), (8, 347716022), (16, 173858011), (1223, 2274512), (2446, 1137256), (4892, 568628), (9784, 284314), (19568, 142157)]