19518880

素因数分解:

$2^5\times 5^1\times {\mathrm{121993}}^1$

素因数の和:122008

約数の個数: 24

約数和(自身を含む): 46113732

約数和(自身を除く): 26594852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 121993, 243986, 487972, 609965, 975944, 1219930, 1951888, 2439860, 3903776, 4879720, 9759440, 19518880]

約数ペア:

[(1, 19518880), (2, 9759440), (4, 4879720), (5, 3903776), (8, 2439860), (10, 1951888), (16, 1219930), (20, 975944), (32, 609965), (40, 487972), (80, 243986), (160, 121993)]