19778410

素因数分解:

$2^1\times 5^1\times {\mathrm{929}}^1\times {\mathrm{2129}}^1$

素因数の和:3065

約数の個数: 16

約数和(自身を含む): 35656200

約数和(自身を除く): 15877790

約数列:

[1, 2, 5, 10, 929, 1858, 2129, 4258, 4645, 9290, 10645, 21290, 1977841, 3955682, 9889205, 19778410]

約数ペア:

[(1, 19778410), (2, 9889205), (5, 3955682), (10, 1977841), (929, 21290), (1858, 10645), (2129, 9290), (4258, 4645)]