20076620

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{11279}}^1$

素因数の和:11377

約数の個数: 24

約数和(自身を含む): 42638400

約数和(自身を除く): 22561780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 11279, 22558, 45116, 56395, 112790, 225580, 1003831, 2007662, 4015324, 5019155, 10038310, 20076620]

約数ペア:

[(1, 20076620), (2, 10038310), (4, 5019155), (5, 4015324), (10, 2007662), (20, 1003831), (89, 225580), (178, 112790), (356, 56395), (445, 45116), (890, 22558), (1780, 11279)]