18975825

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1$

素因数の和:96

約数の個数: 108

約数和(自身を含む): 40520844

約数和(自身を除く): 21545019

約数列:

[1, 3, 5, 9, 11, 15, 17, 25, 33, 41, 45, 51, 55, 75, 85, 99, 121, 123, 153, 165, 187, 205, 225, 255, 275, 363, 369, 425, 451, 495, 561, 605, 615, 697, 765, 825, 935, 1025, 1089, 1275, 1353, 1683, 1815, 1845, 2057, 2091, 2255, 2475, 2805, 3025, 3075, 3485, 3825, 4059, 4675, 4961, 5445, 6171, 6273, 6765, 7667, 8415, 9075, 9225, 10285, 10455, 11275, 14025, 14883, 17425, 18513, 20295, 23001, 24805, 27225, 30855, 31365, 33825, 38335, 42075, 44649, 51425, 52275, 69003, 74415, 84337, 92565, 101475, 115005, 124025, 154275, 156825, 191675, 223245, 253011, 345015, 372075, 421685, 462825, 575025, 759033, 1116225, 1265055, 1725075, 2108425, 3795165, 6325275, 18975825]

約数ペア:

[(1, 18975825), (3, 6325275), (5, 3795165), (9, 2108425), (11, 1725075), (15, 1265055), (17, 1116225), (25, 759033), (33, 575025), (41, 462825), (45, 421685), (51, 372075), (55, 345015), (75, 253011), (85, 223245), (99, 191675), (121, 156825), (123, 154275), (153, 124025), (165, 115005), (187, 101475), (205, 92565), (225, 84337), (255, 74415), (275, 69003), (363, 52275), (369, 51425), (425, 44649), (451, 42075), (495, 38335), (561, 33825), (605, 31365), (615, 30855), (697, 27225), (765, 24805), (825, 23001), (935, 20295), (1025, 18513), (1089, 17425), (1275, 14883), (1353, 14025), (1683, 11275), (1815, 10455), (1845, 10285), (2057, 9225), (2091, 9075), (2255, 8415), (2475, 7667), (2805, 6765), (3025, 6273), (3075, 6171), (3485, 5445), (3825, 4961), (4059, 4675)]