639730044

素因数分解:

$2^2\times 3^2\times {\mathrm{17770279}}^1$

素因数の和:17770289

約数の個数: 18

約数和(自身を含む): 1617095480

約数和(自身を除く): 977365436

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 17770279, 35540558, 53310837, 71081116, 106621674, 159932511, 213243348, 319865022, 639730044]

約数ペア:

[(1, 639730044), (2, 319865022), (3, 213243348), (4, 159932511), (6, 106621674), (9, 71081116), (12, 53310837), (18, 35540558), (36, 17770279)]