249932385

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1171}}^1$

素因数の和:1236

約数の個数: 80

約数和(自身を含む): 490102272

約数和(自身を除く): 240169887

約数列:

[1, 3, 5, 9, 15, 17, 27, 31, 45, 51, 81, 85, 93, 135, 153, 155, 255, 279, 405, 459, 465, 527, 765, 837, 1171, 1377, 1395, 1581, 2295, 2511, 2635, 3513, 4185, 4743, 5855, 6885, 7905, 10539, 12555, 14229, 17565, 19907, 23715, 31617, 36301, 42687, 52695, 59721, 71145, 94851, 99535, 108903, 158085, 179163, 181505, 213435, 298605, 326709, 474255, 537489, 544515, 617117, 895815, 980127, 1612467, 1633545, 1851351, 2687445, 2940381, 3085585, 4900635, 5554053, 8062335, 9256755, 14701905, 16662159, 27770265, 49986477, 83310795, 249932385]

約数ペア:

[(1, 249932385), (3, 83310795), (5, 49986477), (9, 27770265), (15, 16662159), (17, 14701905), (27, 9256755), (31, 8062335), (45, 5554053), (51, 4900635), (81, 3085585), (85, 2940381), (93, 2687445), (135, 1851351), (153, 1633545), (155, 1612467), (255, 980127), (279, 895815), (405, 617117), (459, 544515), (465, 537489), (527, 474255), (765, 326709), (837, 298605), (1171, 213435), (1377, 181505), (1395, 179163), (1581, 158085), (2295, 108903), (2511, 99535), (2635, 94851), (3513, 71145), (4185, 59721), (4743, 52695), (5855, 42687), (6885, 36301), (7905, 31617), (10539, 23715), (12555, 19907), (14229, 17565)]