641312

素因数分解:

$2^5\times 7^2\times {\mathrm{409}}^1$

素因数の和:433

約数の個数: 36

約数和(自身を含む): 1472310

約数和(自身を除く): 830998

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 392, 409, 784, 818, 1568, 1636, 2863, 3272, 5726, 6544, 11452, 13088, 20041, 22904, 40082, 45808, 80164, 91616, 160328, 320656, 641312]

約数ペア:

[(1, 641312), (2, 320656), (4, 160328), (7, 91616), (8, 80164), (14, 45808), (16, 40082), (28, 22904), (32, 20041), (49, 13088), (56, 11452), (98, 6544), (112, 5726), (196, 3272), (224, 2863), (392, 1636), (409, 1568), (784, 818)]