258016780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1842977}}^1$

素因数の和:1842993

約数の個数: 24

約数和(自身を含む): 619240608

約数和(自身を除く): 361223828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1842977, 3685954, 7371908, 9214885, 12900839, 18429770, 25801678, 36859540, 51603356, 64504195, 129008390, 258016780]

約数ペア:

[(1, 258016780), (2, 129008390), (4, 64504195), (5, 51603356), (7, 36859540), (10, 25801678), (14, 18429770), (20, 12900839), (28, 9214885), (35, 7371908), (70, 3685954), (140, 1842977)]