20280208

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{97501}}^1$

素因数の和:97522

約数の個数: 20

約数和(自身を含む): 42315868

約数和(自身を除く): 22035660

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 97501, 195002, 390004, 780008, 1267513, 1560016, 2535026, 5070052, 10140104, 20280208]

約数ペア:

[(1, 20280208), (2, 10140104), (4, 5070052), (8, 2535026), (13, 1560016), (16, 1267513), (26, 780008), (52, 390004), (104, 195002), (208, 97501)]