51878475

素因数分解:

$3^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1$

素因数の和:187

約数の個数: 120

約数和(自身を含む): 111809808

約数和(自身を除く): 59931333

約数列:

[1, 3, 5, 9, 11, 15, 17, 25, 27, 33, 45, 51, 55, 75, 81, 85, 99, 135, 137, 153, 165, 187, 225, 255, 275, 297, 405, 411, 425, 459, 495, 561, 675, 685, 765, 825, 891, 935, 1233, 1275, 1377, 1485, 1507, 1683, 2025, 2055, 2295, 2329, 2475, 2805, 3425, 3699, 3825, 4455, 4521, 4675, 5049, 6165, 6885, 6987, 7425, 7535, 8415, 10275, 11097, 11475, 11645, 13563, 14025, 15147, 18495, 20961, 22275, 22605, 25245, 25619, 30825, 34425, 34935, 37675, 40689, 42075, 55485, 58225, 62883, 67815, 75735, 76857, 92475, 104805, 113025, 122067, 126225, 128095, 174675, 188649, 203445, 230571, 277425, 314415, 339075, 378675, 384285, 524025, 610335, 640475, 691713, 943245, 1017225, 1152855, 1572075, 1921425, 2075139, 3051675, 3458565, 4716225, 5764275, 10375695, 17292825, 51878475]

約数ペア:

[(1, 51878475), (3, 17292825), (5, 10375695), (9, 5764275), (11, 4716225), (15, 3458565), (17, 3051675), (25, 2075139), (27, 1921425), (33, 1572075), (45, 1152855), (51, 1017225), (55, 943245), (75, 691713), (81, 640475), (85, 610335), (99, 524025), (135, 384285), (137, 378675), (153, 339075), (165, 314415), (187, 277425), (225, 230571), (255, 203445), (275, 188649), (297, 174675), (405, 128095), (411, 126225), (425, 122067), (459, 113025), (495, 104805), (561, 92475), (675, 76857), (685, 75735), (765, 67815), (825, 62883), (891, 58225), (935, 55485), (1233, 42075), (1275, 40689), (1377, 37675), (1485, 34935), (1507, 34425), (1683, 30825), (2025, 25619), (2055, 25245), (2295, 22605), (2329, 22275), (2475, 20961), (2805, 18495), (3425, 15147), (3699, 14025), (3825, 13563), (4455, 11645), (4521, 11475), (4675, 11097), (5049, 10275), (6165, 8415), (6885, 7535), (6987, 7425)]