81540208

素因数分解:

$2^4\times {\mathrm{137}}^1\times {\mathrm{37199}}^1$

素因数の和:37344

約数の個数: 20

約数和(自身を含む): 159141600

約数和(自身を除く): 77601392

約数列:

[1, 2, 4, 8, 16, 137, 274, 548, 1096, 2192, 37199, 74398, 148796, 297592, 595184, 5096263, 10192526, 20385052, 40770104, 81540208]

約数ペア:

[(1, 81540208), (2, 40770104), (4, 20385052), (8, 10192526), (16, 5096263), (137, 595184), (274, 297592), (548, 148796), (1096, 74398), (2192, 37199)]