331120

素因数分解:

$2^4\times 5^1\times {\mathrm{4139}}^1$

素因数の和:4152

約数の個数: 20

約数和(自身を含む): 770040

約数和(自身を除く): 438920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4139, 8278, 16556, 20695, 33112, 41390, 66224, 82780, 165560, 331120]

約数ペア:

[(1, 331120), (2, 165560), (4, 82780), (5, 66224), (8, 41390), (10, 33112), (16, 20695), (20, 16556), (40, 8278), (80, 4139)]