18486225

素因数分解:

$3^5\times 5^2\times {\mathrm{17}}^1\times {\mathrm{179}}^1$

素因数の和:221

約数の個数: 72

約数和(自身を含む): 36560160

約数和(自身を除く): 18073935

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 81, 85, 135, 153, 179, 225, 243, 255, 405, 425, 459, 537, 675, 765, 895, 1215, 1275, 1377, 1611, 2025, 2295, 2685, 3043, 3825, 4131, 4475, 4833, 6075, 6885, 8055, 9129, 11475, 13425, 14499, 15215, 20655, 24165, 27387, 34425, 40275, 43497, 45645, 72495, 76075, 82161, 103275, 120825, 136935, 217485, 228225, 246483, 362475, 410805, 684675, 739449, 1087425, 1232415, 2054025, 3697245, 6162075, 18486225]

約数ペア:

[(1, 18486225), (3, 6162075), (5, 3697245), (9, 2054025), (15, 1232415), (17, 1087425), (25, 739449), (27, 684675), (45, 410805), (51, 362475), (75, 246483), (81, 228225), (85, 217485), (135, 136935), (153, 120825), (179, 103275), (225, 82161), (243, 76075), (255, 72495), (405, 45645), (425, 43497), (459, 40275), (537, 34425), (675, 27387), (765, 24165), (895, 20655), (1215, 15215), (1275, 14499), (1377, 13425), (1611, 11475), (2025, 9129), (2295, 8055), (2685, 6885), (3043, 6075), (3825, 4833), (4131, 4475)]