80340579

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2437}}^1$

素因数の和:2497

約数の個数: 40

約数和(自身を含む): 134519088

約数和(自身を除く): 54178509

約数列:

[1, 3, 9, 11, 27, 33, 37, 81, 99, 111, 297, 333, 407, 891, 999, 1221, 2437, 2997, 3663, 7311, 10989, 21933, 26807, 32967, 65799, 80421, 90169, 197397, 241263, 270507, 723789, 811521, 991859, 2171367, 2434563, 2975577, 7303689, 8926731, 26780193, 80340579]

約数ペア:

[(1, 80340579), (3, 26780193), (9, 8926731), (11, 7303689), (27, 2975577), (33, 2434563), (37, 2171367), (81, 991859), (99, 811521), (111, 723789), (297, 270507), (333, 241263), (407, 197397), (891, 90169), (999, 80421), (1221, 65799), (2437, 32967), (2997, 26807), (3663, 21933), (7311, 10989)]