78931984

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{35491}}^1$

素因数の和:35638

約数の個数: 20

約数和(自身を含む): 154035280

約数和(自身を除く): 75103296

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 35491, 70982, 141964, 283928, 567856, 4933249, 9866498, 19732996, 39465992, 78931984]

約数ペア:

[(1, 78931984), (2, 39465992), (4, 19732996), (8, 9866498), (16, 4933249), (139, 567856), (278, 283928), (556, 141964), (1112, 70982), (2224, 35491)]