20426175

素因数分解:

$3^4\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1$

素因数の和:171

約数の個数: 120

約数和(自身を含む): 47532672

約数和(自身を除く): 27106497

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 25, 27, 33, 35, 45, 55, 63, 75, 77, 81, 99, 105, 131, 135, 165, 175, 189, 225, 231, 275, 297, 315, 385, 393, 405, 495, 525, 567, 655, 675, 693, 825, 891, 917, 945, 1155, 1179, 1441, 1485, 1575, 1925, 1965, 2025, 2079, 2475, 2751, 2835, 3275, 3465, 3537, 4323, 4455, 4585, 4725, 5775, 5895, 6237, 7205, 7425, 8253, 9825, 10087, 10395, 10611, 12969, 13755, 14175, 17325, 17685, 21615, 22275, 22925, 24759, 29475, 30261, 31185, 36025, 38907, 41265, 50435, 51975, 53055, 64845, 68775, 74277, 88425, 90783, 108075, 116721, 123795, 151305, 155925, 194535, 206325, 252175, 265275, 272349, 324225, 371385, 453915, 583605, 618975, 756525, 817047, 972675, 1361745, 1856925, 2269575, 2918025, 4085235, 6808725, 20426175]

約数ペア:

[(1, 20426175), (3, 6808725), (5, 4085235), (7, 2918025), (9, 2269575), (11, 1856925), (15, 1361745), (21, 972675), (25, 817047), (27, 756525), (33, 618975), (35, 583605), (45, 453915), (55, 371385), (63, 324225), (75, 272349), (77, 265275), (81, 252175), (99, 206325), (105, 194535), (131, 155925), (135, 151305), (165, 123795), (175, 116721), (189, 108075), (225, 90783), (231, 88425), (275, 74277), (297, 68775), (315, 64845), (385, 53055), (393, 51975), (405, 50435), (495, 41265), (525, 38907), (567, 36025), (655, 31185), (675, 30261), (693, 29475), (825, 24759), (891, 22925), (917, 22275), (945, 21615), (1155, 17685), (1179, 17325), (1441, 14175), (1485, 13755), (1575, 12969), (1925, 10611), (1965, 10395), (2025, 10087), (2079, 9825), (2475, 8253), (2751, 7425), (2835, 7205), (3275, 6237), (3465, 5895), (3537, 5775), (4323, 4725), (4455, 4585)]