648754425

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{907}}^1$

素因数の和:968

約数の個数: 108

約数和(自身を含む): 1348064016

約数和(自身を除く): 699309591

約数列:

[1, 3, 5, 9, 11, 15, 17, 25, 33, 45, 51, 55, 75, 85, 99, 153, 165, 187, 225, 255, 275, 289, 425, 495, 561, 765, 825, 867, 907, 935, 1275, 1445, 1683, 2475, 2601, 2721, 2805, 3179, 3825, 4335, 4535, 4675, 7225, 8163, 8415, 9537, 9977, 13005, 13605, 14025, 15419, 15895, 21675, 22675, 28611, 29931, 40815, 42075, 46257, 47685, 49885, 65025, 68025, 77095, 79475, 89793, 138771, 143055, 149655, 169609, 204075, 231285, 238425, 249425, 262123, 385475, 448965, 508827, 693855, 715275, 748275, 786369, 848045, 1156425, 1310615, 1526481, 2244825, 2359107, 2544135, 2883353, 3469275, 3931845, 4240225, 6553075, 7632405, 8650059, 11795535, 12720675, 14416765, 19659225, 25950177, 38162025, 43250295, 58977675, 72083825, 129750885, 216251475, 648754425]

約数ペア:

[(1, 648754425), (3, 216251475), (5, 129750885), (9, 72083825), (11, 58977675), (15, 43250295), (17, 38162025), (25, 25950177), (33, 19659225), (45, 14416765), (51, 12720675), (55, 11795535), (75, 8650059), (85, 7632405), (99, 6553075), (153, 4240225), (165, 3931845), (187, 3469275), (225, 2883353), (255, 2544135), (275, 2359107), (289, 2244825), (425, 1526481), (495, 1310615), (561, 1156425), (765, 848045), (825, 786369), (867, 748275), (907, 715275), (935, 693855), (1275, 508827), (1445, 448965), (1683, 385475), (2475, 262123), (2601, 249425), (2721, 238425), (2805, 231285), (3179, 204075), (3825, 169609), (4335, 149655), (4535, 143055), (4675, 138771), (7225, 89793), (8163, 79475), (8415, 77095), (9537, 68025), (9977, 65025), (13005, 49885), (13605, 47685), (14025, 46257), (15419, 42075), (15895, 40815), (21675, 29931), (22675, 28611)]