638310652

素因数分解:

$2^2\times 7^4\times {\mathrm{66463}}^1$

素因数の和:66495

約数の個数: 30

約数和(自身を含む): 1303159648

約数和(自身を除く): 664848996

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 2401, 4802, 9604, 66463, 132926, 265852, 465241, 930482, 1860964, 3256687, 6513374, 13026748, 22796809, 45593618, 91187236, 159577663, 319155326, 638310652]

約数ペア:

[(1, 638310652), (2, 319155326), (4, 159577663), (7, 91187236), (14, 45593618), (28, 22796809), (49, 13026748), (98, 6513374), (196, 3256687), (343, 1860964), (686, 930482), (1372, 465241), (2401, 265852), (4802, 132926), (9604, 66463)]