20322490

素因数分解:

$2^1\times 5^1\times {\mathrm{491}}^1\times {\mathrm{4139}}^1$

素因数の和:4637

約数の個数: 16

約数和(自身を含む): 36663840

約数和(自身を除く): 16341350

約数列:

[1, 2, 5, 10, 491, 982, 2455, 4139, 4910, 8278, 20695, 41390, 2032249, 4064498, 10161245, 20322490]

約数ペア:

[(1, 20322490), (2, 10161245), (5, 4064498), (10, 2032249), (491, 41390), (982, 20695), (2455, 8278), (4139, 4910)]