331389040

素因数分解:

$2^4\times 5^1\times {\mathrm{4142363}}^1$

素因数の和:4142376

約数の個数: 20

約数和(自身を含む): 770479704

約数和(自身を除く): 439090664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4142363, 8284726, 16569452, 20711815, 33138904, 41423630, 66277808, 82847260, 165694520, 331389040]

約数ペア:

[(1, 331389040), (2, 165694520), (4, 82847260), (5, 66277808), (8, 41423630), (10, 33138904), (16, 20711815), (20, 16569452), (40, 8284726), (80, 4142363)]