18973940

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{4967}}^1$

素因数の和:5167

約数の個数: 24

約数和(自身を含む): 40061952

約数和(自身を除く): 21088012

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 4967, 9934, 19868, 24835, 49670, 99340, 948697, 1897394, 3794788, 4743485, 9486970, 18973940]

約数ペア:

[(1, 18973940), (2, 9486970), (4, 4743485), (5, 3794788), (10, 1897394), (20, 948697), (191, 99340), (382, 49670), (764, 24835), (955, 19868), (1910, 9934), (3820, 4967)]