80939980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{367909}}^1$

素因数の和:367929

約数の個数: 24

約数和(自身を含む): 185426640

約数和(自身を除く): 104486660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 367909, 735818, 1471636, 1839545, 3679090, 4046999, 7358180, 8093998, 16187996, 20234995, 40469990, 80939980]

約数ペア:

[(1, 80939980), (2, 40469990), (4, 20234995), (5, 16187996), (10, 8093998), (11, 7358180), (20, 4046999), (22, 3679090), (44, 1839545), (55, 1471636), (110, 735818), (220, 367909)]