219790490

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{167779}}^1$

素因数の和:167917

約数の個数: 16

約数和(自身を含む): 398645280

約数和(自身を除く): 178854790

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 167779, 335558, 838895, 1677790, 21979049, 43958098, 109895245, 219790490]

約数ペア:

[(1, 219790490), (2, 109895245), (5, 43958098), (10, 21979049), (131, 1677790), (262, 838895), (655, 335558), (1310, 167779)]