2991980

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{709}}^1$

素因数の和:929

約数の個数: 24

約数和(自身を含む): 6321840

約数和(自身を除く): 3329860

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 709, 844, 1055, 1418, 2110, 2836, 3545, 4220, 7090, 14180, 149599, 299198, 598396, 747995, 1495990, 2991980]

約数ペア:

[(1, 2991980), (2, 1495990), (4, 747995), (5, 598396), (10, 299198), (20, 149599), (211, 14180), (422, 7090), (709, 4220), (844, 3545), (1055, 2836), (1418, 2110)]