20189285

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{449}}^1$

素因数の和:517

約数の個数: 24

約数和(自身を含む): 26875800

約数和(自身を除く): 6686515

約数列:

[1, 5, 17, 23, 85, 115, 391, 449, 529, 1955, 2245, 2645, 7633, 8993, 10327, 38165, 44965, 51635, 175559, 237521, 877795, 1187605, 4037857, 20189285]

約数ペア:

[(1, 20189285), (5, 4037857), (17, 1187605), (23, 877795), (85, 237521), (115, 175559), (391, 51635), (449, 44965), (529, 38165), (1955, 10327), (2245, 8993), (2645, 7633)]