42106780

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{10687}}^1$

素因数の和:10893

約数の個数: 24

約数和(自身を含む): 88881408

約数和(自身を除く): 46774628

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 10687, 21374, 42748, 53435, 106870, 213740, 2105339, 4210678, 8421356, 10526695, 21053390, 42106780]

約数ペア:

[(1, 42106780), (2, 21053390), (4, 10526695), (5, 8421356), (10, 4210678), (20, 2105339), (197, 213740), (394, 106870), (788, 53435), (985, 42748), (1970, 21374), (3940, 10687)]