19760560

素因数分解:

$2^4\times 5^1\times {\mathrm{247007}}^1$

素因数の和:247020

約数の個数: 20

約数和(自身を含む): 45943488

約数和(自身を除く): 26182928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 247007, 494014, 988028, 1235035, 1976056, 2470070, 3952112, 4940140, 9880280, 19760560]

約数ペア:

[(1, 19760560), (2, 9880280), (4, 4940140), (5, 3952112), (8, 2470070), (10, 1976056), (16, 1235035), (20, 988028), (40, 494014), (80, 247007)]