20726475

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:165

約数の個数: 96

約数和(自身を含む): 44330496

約数和(自身を除く): 23604021

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 33, 35, 37, 55, 75, 77, 97, 105, 111, 165, 175, 185, 231, 259, 275, 291, 385, 407, 485, 525, 555, 679, 777, 825, 925, 1067, 1155, 1221, 1295, 1455, 1925, 2035, 2037, 2425, 2775, 2849, 3201, 3395, 3589, 3885, 5335, 5775, 6105, 6475, 7275, 7469, 8547, 10175, 10185, 10767, 14245, 16005, 16975, 17945, 19425, 22407, 25123, 26675, 30525, 37345, 39479, 42735, 50925, 53835, 71225, 75369, 80025, 89725, 112035, 118437, 125615, 186725, 197395, 213675, 269175, 276353, 376845, 560175, 592185, 628075, 829059, 986975, 1381765, 1884225, 2960925, 4145295, 6908825, 20726475]

約数ペア:

[(1, 20726475), (3, 6908825), (5, 4145295), (7, 2960925), (11, 1884225), (15, 1381765), (21, 986975), (25, 829059), (33, 628075), (35, 592185), (37, 560175), (55, 376845), (75, 276353), (77, 269175), (97, 213675), (105, 197395), (111, 186725), (165, 125615), (175, 118437), (185, 112035), (231, 89725), (259, 80025), (275, 75369), (291, 71225), (385, 53835), (407, 50925), (485, 42735), (525, 39479), (555, 37345), (679, 30525), (777, 26675), (825, 25123), (925, 22407), (1067, 19425), (1155, 17945), (1221, 16975), (1295, 16005), (1455, 14245), (1925, 10767), (2035, 10185), (2037, 10175), (2425, 8547), (2775, 7469), (2849, 7275), (3201, 6475), (3395, 6105), (3589, 5775), (3885, 5335)]