19511080

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11897}}^1$

素因数の和:11949

約数の個数: 32

約数和(自身を含む): 44974440

約数和(自身を除く): 25463360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 11897, 23794, 47588, 59485, 95176, 118970, 237940, 475880, 487777, 975554, 1951108, 2438885, 3902216, 4877770, 9755540, 19511080]

約数ペア:

[(1, 19511080), (2, 9755540), (4, 4877770), (5, 3902216), (8, 2438885), (10, 1951108), (20, 975554), (40, 487777), (41, 475880), (82, 237940), (164, 118970), (205, 95176), (328, 59485), (410, 47588), (820, 23794), (1640, 11897)]