7868540

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{991}}^1$

素因数の和:1397

約数の個数: 24

約数和(自身を含む): 16582272

約数和(自身を除く): 8713732

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 991, 1588, 1982, 1985, 3964, 3970, 4955, 7940, 9910, 19820, 393427, 786854, 1573708, 1967135, 3934270, 7868540]

約数ペア:

[(1, 7868540), (2, 3934270), (4, 1967135), (5, 1573708), (10, 786854), (20, 393427), (397, 19820), (794, 9910), (991, 7940), (1588, 4955), (1982, 3970), (1985, 3964)]