39489680

素因数分解:

$2^4\times 5^1\times {\mathrm{493621}}^1$

素因数の和:493634

約数の個数: 20

約数和(自身を含む): 91813692

約数和(自身を除く): 52324012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 493621, 987242, 1974484, 2468105, 3948968, 4936210, 7897936, 9872420, 19744840, 39489680]

約数ペア:

[(1, 39489680), (2, 19744840), (4, 9872420), (5, 7897936), (8, 4936210), (10, 3948968), (16, 2468105), (20, 1974484), (40, 987242), (80, 493621)]