82168040

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{7993}}^1$

素因数の和:8261

約数の個数: 32

約数和(自身を含む): 185620680

約数和(自身を除く): 103452640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 7993, 10280, 15986, 31972, 39965, 63944, 79930, 159860, 319720, 2054201, 4108402, 8216804, 10271005, 16433608, 20542010, 41084020, 82168040]

約数ペア:

[(1, 82168040), (2, 41084020), (4, 20542010), (5, 16433608), (8, 10271005), (10, 8216804), (20, 4108402), (40, 2054201), (257, 319720), (514, 159860), (1028, 79930), (1285, 63944), (2056, 39965), (2570, 31972), (5140, 15986), (7993, 10280)]