19826780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{24179}}^1$

素因数の和:24229

約数の個数: 24

約数和(自身を含む): 42653520

約数和(自身を除く): 22826740

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 24179, 48358, 96716, 120895, 241790, 483580, 991339, 1982678, 3965356, 4956695, 9913390, 19826780]

約数ペア:

[(1, 19826780), (2, 9913390), (4, 4956695), (5, 3965356), (10, 1982678), (20, 991339), (41, 483580), (82, 241790), (164, 120895), (205, 96716), (410, 48358), (820, 24179)]