19006180

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^2\times {\mathrm{101}}^1$

素因数の和:304

約数の個数: 36

約数和(自身を含む): 40727988

約数和(自身を除く): 21721808

約数列:

[1, 2, 4, 5, 10, 20, 97, 101, 194, 202, 388, 404, 485, 505, 970, 1010, 1940, 2020, 9409, 9797, 18818, 19594, 37636, 39188, 47045, 48985, 94090, 97970, 188180, 195940, 950309, 1900618, 3801236, 4751545, 9503090, 19006180]

約数ペア:

[(1, 19006180), (2, 9503090), (4, 4751545), (5, 3801236), (10, 1900618), (20, 950309), (97, 195940), (101, 188180), (194, 97970), (202, 94090), (388, 48985), (404, 47045), (485, 39188), (505, 37636), (970, 19594), (1010, 18818), (1940, 9797), (2020, 9409)]