165300020

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{77243}}^1$

素因数の和:77359

約数の個数: 24

約数和(自身を含む): 350378784

約数和(自身を除く): 185078764

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 77243, 154486, 308972, 386215, 772430, 1544860, 8265001, 16530002, 33060004, 41325005, 82650010, 165300020]

約数ペア:

[(1, 165300020), (2, 82650010), (4, 41325005), (5, 33060004), (10, 16530002), (20, 8265001), (107, 1544860), (214, 772430), (428, 386215), (535, 308972), (1070, 154486), (2140, 77243)]