2628140

素因数分解:

$2^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{397}}^1$

素因数の和:737

約数の個数: 24

約数和(自身を含む): 5549712

約数和(自身を除く): 2921572

約数列:

[1, 2, 4, 5, 10, 20, 331, 397, 662, 794, 1324, 1588, 1655, 1985, 3310, 3970, 6620, 7940, 131407, 262814, 525628, 657035, 1314070, 2628140]

約数ペア:

[(1, 2628140), (2, 1314070), (4, 657035), (5, 525628), (10, 262814), (20, 131407), (331, 7940), (397, 6620), (662, 3970), (794, 3310), (1324, 1985), (1588, 1655)]