20259495

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{373}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 37806912

約数和(自身を除く): 17547417

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 71, 85, 153, 213, 255, 355, 373, 639, 765, 1065, 1119, 1207, 1865, 3195, 3357, 3621, 5595, 6035, 6341, 10863, 16785, 18105, 19023, 26483, 31705, 54315, 57069, 79449, 95115, 132415, 238347, 285345, 397245, 450211, 1191735, 1350633, 2251055, 4051899, 6753165, 20259495]

約数ペア:

[(1, 20259495), (3, 6753165), (5, 4051899), (9, 2251055), (15, 1350633), (17, 1191735), (45, 450211), (51, 397245), (71, 285345), (85, 238347), (153, 132415), (213, 95115), (255, 79449), (355, 57069), (373, 54315), (639, 31705), (765, 26483), (1065, 19023), (1119, 18105), (1207, 16785), (1865, 10863), (3195, 6341), (3357, 6035), (3621, 5595)]