265501520

素因数分解:

$2^4\times 5^1\times {\mathrm{3318769}}^1$

素因数の和:3318782

約数の個数: 20

約数和(自身を含む): 617291220

約数和(自身を除く): 351789700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3318769, 6637538, 13275076, 16593845, 26550152, 33187690, 53100304, 66375380, 132750760, 265501520]

約数ペア:

[(1, 265501520), (2, 132750760), (4, 66375380), (5, 53100304), (8, 33187690), (10, 26550152), (16, 16593845), (20, 13275076), (40, 6637538), (80, 3318769)]