85217780

素因数分解:

$2^2\times 5^1\times {\mathrm{1103}}^1\times {\mathrm{3863}}^1$

素因数の和:4975

約数の個数: 24

約数和(自身を含む): 179165952

約数和(自身を除く): 93948172

約数列:

[1, 2, 4, 5, 10, 20, 1103, 2206, 3863, 4412, 5515, 7726, 11030, 15452, 19315, 22060, 38630, 77260, 4260889, 8521778, 17043556, 21304445, 42608890, 85217780]

約数ペア:

[(1, 85217780), (2, 42608890), (4, 21304445), (5, 17043556), (10, 8521778), (20, 4260889), (1103, 77260), (2206, 38630), (3863, 22060), (4412, 19315), (5515, 15452), (7726, 11030)]