209938580

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{23911}}^1$

素因数の和:24359

約数の個数: 24

約数和(自身を含む): 441893760

約数和(自身を除く): 231955180

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 4390, 8780, 23911, 47822, 95644, 119555, 239110, 478220, 10496929, 20993858, 41987716, 52484645, 104969290, 209938580]

約数ペア:

[(1, 209938580), (2, 104969290), (4, 52484645), (5, 41987716), (10, 20993858), (20, 10496929), (439, 478220), (878, 239110), (1756, 119555), (2195, 95644), (4390, 47822), (8780, 23911)]