28015065

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1$

素因数の和:360

約数の個数: 80

約数和(自身を含む): 57446928

約数和(自身を除く): 29431863

約数列:

[1, 3, 5, 9, 13, 15, 17, 27, 39, 45, 51, 65, 81, 85, 117, 135, 153, 195, 221, 255, 313, 351, 405, 459, 585, 663, 765, 939, 1053, 1105, 1377, 1565, 1755, 1989, 2295, 2817, 3315, 4069, 4695, 5265, 5321, 5967, 6885, 8451, 9945, 12207, 14085, 15963, 17901, 20345, 25353, 26605, 29835, 36621, 42255, 47889, 61035, 69173, 79815, 89505, 109863, 126765, 143667, 183105, 207519, 239445, 329589, 345865, 431001, 549315, 622557, 718335, 1037595, 1647945, 1867671, 2155005, 3112785, 5603013, 9338355, 28015065]

約数ペア:

[(1, 28015065), (3, 9338355), (5, 5603013), (9, 3112785), (13, 2155005), (15, 1867671), (17, 1647945), (27, 1037595), (39, 718335), (45, 622557), (51, 549315), (65, 431001), (81, 345865), (85, 329589), (117, 239445), (135, 207519), (153, 183105), (195, 143667), (221, 126765), (255, 109863), (313, 89505), (351, 79815), (405, 69173), (459, 61035), (585, 47889), (663, 42255), (765, 36621), (939, 29835), (1053, 26605), (1105, 25353), (1377, 20345), (1565, 17901), (1755, 15963), (1989, 14085), (2295, 12207), (2817, 9945), (3315, 8451), (4069, 6885), (4695, 5967), (5265, 5321)]