81617464

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{3863}}^1$

素因数の和:4027

約数の個数: 32

約数和(自身を含む): 162288000

約数和(自身を除く): 80670536

約数列:

[1, 2, 4, 8, 19, 38, 76, 139, 152, 278, 556, 1112, 2641, 3863, 5282, 7726, 10564, 15452, 21128, 30904, 73397, 146794, 293588, 536957, 587176, 1073914, 2147828, 4295656, 10202183, 20404366, 40808732, 81617464]

約数ペア:

[(1, 81617464), (2, 40808732), (4, 20404366), (8, 10202183), (19, 4295656), (38, 2147828), (76, 1073914), (139, 587176), (152, 536957), (278, 293588), (556, 146794), (1112, 73397), (2641, 30904), (3863, 21128), (5282, 15452), (7726, 10564)]