39805420

素因数分解:

$2^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{3011}}^1$

素因数の和:3681

約数の個数: 24

約数和(自身を含む): 83745648

約数和(自身を除く): 43940228

約数列:

[1, 2, 4, 5, 10, 20, 661, 1322, 2644, 3011, 3305, 6022, 6610, 12044, 13220, 15055, 30110, 60220, 1990271, 3980542, 7961084, 9951355, 19902710, 39805420]

約数ペア:

[(1, 39805420), (2, 19902710), (4, 9951355), (5, 7961084), (10, 3980542), (20, 1990271), (661, 60220), (1322, 30110), (2644, 15055), (3011, 13220), (3305, 12044), (6022, 6610)]