31283145

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{317}}^1$

素因数の和:391

約数の個数: 64

約数和(自身を含む): 60445440

約数和(自身を除く): 29162295

約数列:

[1, 3, 5, 9, 15, 17, 27, 43, 45, 51, 85, 129, 135, 153, 215, 255, 317, 387, 459, 645, 731, 765, 951, 1161, 1585, 1935, 2193, 2295, 2853, 3655, 4755, 5389, 5805, 6579, 8559, 10965, 13631, 14265, 16167, 19737, 26945, 32895, 40893, 42795, 48501, 68155, 80835, 98685, 122679, 145503, 204465, 231727, 242505, 368037, 613395, 695181, 727515, 1158635, 1840185, 2085543, 3475905, 6256629, 10427715, 31283145]

約数ペア:

[(1, 31283145), (3, 10427715), (5, 6256629), (9, 3475905), (15, 2085543), (17, 1840185), (27, 1158635), (43, 727515), (45, 695181), (51, 613395), (85, 368037), (129, 242505), (135, 231727), (153, 204465), (215, 145503), (255, 122679), (317, 98685), (387, 80835), (459, 68155), (645, 48501), (731, 42795), (765, 40893), (951, 32895), (1161, 26945), (1585, 19737), (1935, 16167), (2193, 14265), (2295, 13631), (2853, 10965), (3655, 8559), (4755, 6579), (5389, 5805)]