19411100

素因数分解:

$2^2\times 5^2\times {\mathrm{389}}^1\times {\mathrm{499}}^1$

素因数の和:902

約数の個数: 36

約数和(自身を含む): 42315000

約数和(自身を除く): 22903900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 389, 499, 778, 998, 1556, 1945, 1996, 2495, 3890, 4990, 7780, 9725, 9980, 12475, 19450, 24950, 38900, 49900, 194111, 388222, 776444, 970555, 1941110, 3882220, 4852775, 9705550, 19411100]

約数ペア:

[(1, 19411100), (2, 9705550), (4, 4852775), (5, 3882220), (10, 1941110), (20, 970555), (25, 776444), (50, 388222), (100, 194111), (389, 49900), (499, 38900), (778, 24950), (998, 19450), (1556, 12475), (1945, 9980), (1996, 9725), (2495, 7780), (3890, 4990)]