7868025

素因数分解:

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

素因数の和:72

約数の個数: 81

約数和(自身を含む): 16454893

約数和(自身を除く): 8586868

約数列:

[1, 3, 5, 9, 11, 15, 17, 25, 33, 45, 51, 55, 75, 85, 99, 121, 153, 165, 187, 225, 255, 275, 289, 363, 425, 495, 561, 605, 765, 825, 867, 935, 1089, 1275, 1445, 1683, 1815, 2057, 2475, 2601, 2805, 3025, 3179, 3825, 4335, 4675, 5445, 6171, 7225, 8415, 9075, 9537, 10285, 13005, 14025, 15895, 18513, 21675, 27225, 28611, 30855, 34969, 42075, 47685, 51425, 65025, 79475, 92565, 104907, 143055, 154275, 174845, 238425, 314721, 462825, 524535, 715275, 874225, 1573605, 2622675, 7868025]

約数ペア:

[(1, 7868025), (3, 2622675), (5, 1573605), (9, 874225), (11, 715275), (15, 524535), (17, 462825), (25, 314721), (33, 238425), (45, 174845), (51, 154275), (55, 143055), (75, 104907), (85, 92565), (99, 79475), (121, 65025), (153, 51425), (165, 47685), (187, 42075), (225, 34969), (255, 30855), (275, 28611), (289, 27225), (363, 21675), (425, 18513), (495, 15895), (561, 14025), (605, 13005), (765, 10285), (825, 9537), (867, 9075), (935, 8415), (1089, 7225), (1275, 6171), (1445, 5445), (1683, 4675), (1815, 4335), (2057, 3825), (2475, 3179), (2601, 3025)]