163967815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:208

約数の個数: 64

約数和(自身を含む): 239500800

約数和(自身を除く): 75532985

約数列:

[1, 5, 11, 19, 41, 43, 55, 89, 95, 205, 209, 215, 445, 451, 473, 779, 817, 979, 1045, 1691, 1763, 2255, 2365, 3649, 3827, 3895, 4085, 4895, 8455, 8569, 8815, 8987, 18245, 18601, 19135, 19393, 33497, 40139, 42097, 42845, 44935, 69331, 72713, 93005, 96965, 156907, 167485, 200695, 210485, 346655, 363565, 368467, 762641, 784535, 799843, 1725977, 1842335, 2981233, 3813205, 3999215, 8629885, 14906165, 32793563, 163967815]

約数ペア:

[(1, 163967815), (5, 32793563), (11, 14906165), (19, 8629885), (41, 3999215), (43, 3813205), (55, 2981233), (89, 1842335), (95, 1725977), (205, 799843), (209, 784535), (215, 762641), (445, 368467), (451, 363565), (473, 346655), (779, 210485), (817, 200695), (979, 167485), (1045, 156907), (1691, 96965), (1763, 93005), (2255, 72713), (2365, 69331), (3649, 44935), (3827, 42845), (3895, 42097), (4085, 40139), (4895, 33497), (8455, 19393), (8569, 19135), (8815, 18601), (8987, 18245)]