9912820

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5569}}^1$

素因数の和:5667

約数の個数: 24

約数和(自身を含む): 21054600

約数和(自身を除く): 11141780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 5569, 11138, 22276, 27845, 55690, 111380, 495641, 991282, 1982564, 2478205, 4956410, 9912820]

約数ペア:

[(1, 9912820), (2, 4956410), (4, 2478205), (5, 1982564), (10, 991282), (20, 495641), (89, 111380), (178, 55690), (356, 27845), (445, 22276), (890, 11138), (1780, 5569)]