19992640

素因数分解:

$2^6\times 5^1\times {\mathrm{62477}}^1$

素因数の和:62494

約数の個数: 28

約数和(自身を含む): 47608236

約数和(自身を除く): 27615596

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 62477, 124954, 249908, 312385, 499816, 624770, 999632, 1249540, 1999264, 2499080, 3998528, 4998160, 9996320, 19992640]

約数ペア:

[(1, 19992640), (2, 9996320), (4, 4998160), (5, 3998528), (8, 2499080), (10, 1999264), (16, 1249540), (20, 999632), (32, 624770), (40, 499816), (64, 312385), (80, 249908), (160, 124954), (320, 62477)]