81990615

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{2819}}^1$

素因数の和:3111

約数の個数: 32

約数和(自身を含む): 150520320

約数和(自身を除く): 68529705

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 277, 831, 1385, 1939, 2819, 4155, 5817, 8457, 9695, 14095, 19733, 29085, 42285, 59199, 98665, 295995, 780863, 2342589, 3904315, 5466041, 11712945, 16398123, 27330205, 81990615]

約数ペア:

[(1, 81990615), (3, 27330205), (5, 16398123), (7, 11712945), (15, 5466041), (21, 3904315), (35, 2342589), (105, 780863), (277, 295995), (831, 98665), (1385, 59199), (1939, 42285), (2819, 29085), (4155, 19733), (5817, 14095), (8457, 9695)]