1282905

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1$

素因数の和:87

約数の個数: 64

約数和(自身を含む): 2661120

約数和(自身を除く): 1378215

約数列:

[1, 3, 5, 9, 13, 15, 17, 27, 39, 43, 45, 51, 65, 85, 117, 129, 135, 153, 195, 215, 221, 255, 351, 387, 459, 559, 585, 645, 663, 731, 765, 1105, 1161, 1677, 1755, 1935, 1989, 2193, 2295, 2795, 3315, 3655, 5031, 5805, 5967, 6579, 8385, 9503, 9945, 10965, 15093, 19737, 25155, 28509, 29835, 32895, 47515, 75465, 85527, 98685, 142545, 256581, 427635, 1282905]

約数ペア:

[(1, 1282905), (3, 427635), (5, 256581), (9, 142545), (13, 98685), (15, 85527), (17, 75465), (27, 47515), (39, 32895), (43, 29835), (45, 28509), (51, 25155), (65, 19737), (85, 15093), (117, 10965), (129, 9945), (135, 9503), (153, 8385), (195, 6579), (215, 5967), (221, 5805), (255, 5031), (351, 3655), (387, 3315), (459, 2795), (559, 2295), (585, 2193), (645, 1989), (663, 1935), (731, 1755), (765, 1677), (1105, 1161)]