28267515

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:253

約数の個数: 64

約数和(自身を含む): 54172800

約数和(自身を除く): 25905285

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 109, 113, 135, 153, 255, 327, 339, 459, 545, 565, 765, 981, 1017, 1635, 1695, 1853, 1921, 2295, 2943, 3051, 4905, 5085, 5559, 5763, 9265, 9605, 12317, 14715, 15255, 16677, 17289, 27795, 28815, 36951, 50031, 51867, 61585, 83385, 86445, 110853, 184755, 209389, 250155, 259335, 332559, 554265, 628167, 1046945, 1662795, 1884501, 3140835, 5653503, 9422505, 28267515]

約数ペア:

[(1, 28267515), (3, 9422505), (5, 5653503), (9, 3140835), (15, 1884501), (17, 1662795), (27, 1046945), (45, 628167), (51, 554265), (85, 332559), (109, 259335), (113, 250155), (135, 209389), (153, 184755), (255, 110853), (327, 86445), (339, 83385), (459, 61585), (545, 51867), (565, 50031), (765, 36951), (981, 28815), (1017, 27795), (1635, 17289), (1695, 16677), (1853, 15255), (1921, 14715), (2295, 12317), (2943, 9605), (3051, 9265), (4905, 5763), (5085, 5559)]