19645060

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{20899}}^1$

素因数の和:20955

約数の個数: 24

約数和(自身を含む): 42134400

約数和(自身を除く): 22489340

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 20899, 41798, 83596, 104495, 208990, 417980, 982253, 1964506, 3929012, 4911265, 9822530, 19645060]

約数ペア:

[(1, 19645060), (2, 9822530), (4, 4911265), (5, 3929012), (10, 1964506), (20, 982253), (47, 417980), (94, 208990), (188, 104495), (235, 83596), (470, 41798), (940, 20899)]