20825748

素因数分解:

$2^2\times 3^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:251

約数の個数: 120

約数和(自身を含む): 60984000

約数和(自身を除く): 40158252

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 19, 27, 34, 36, 38, 51, 54, 57, 68, 76, 81, 102, 108, 114, 153, 162, 171, 199, 204, 228, 306, 323, 324, 342, 398, 459, 513, 597, 612, 646, 684, 796, 918, 969, 1026, 1194, 1292, 1377, 1539, 1791, 1836, 1938, 2052, 2388, 2754, 2907, 3078, 3383, 3582, 3781, 3876, 5373, 5508, 5814, 6156, 6766, 7164, 7562, 8721, 10149, 10746, 11343, 11628, 13532, 15124, 16119, 17442, 20298, 21492, 22686, 26163, 30447, 32238, 34029, 34884, 40596, 45372, 52326, 60894, 64277, 64476, 68058, 91341, 102087, 104652, 121788, 128554, 136116, 182682, 192831, 204174, 257108, 274023, 306261, 365364, 385662, 408348, 548046, 578493, 612522, 771324, 1096092, 1156986, 1225044, 1735479, 2313972, 3470958, 5206437, 6941916, 10412874, 20825748]

約数ペア:

[(1, 20825748), (2, 10412874), (3, 6941916), (4, 5206437), (6, 3470958), (9, 2313972), (12, 1735479), (17, 1225044), (18, 1156986), (19, 1096092), (27, 771324), (34, 612522), (36, 578493), (38, 548046), (51, 408348), (54, 385662), (57, 365364), (68, 306261), (76, 274023), (81, 257108), (102, 204174), (108, 192831), (114, 182682), (153, 136116), (162, 128554), (171, 121788), (199, 104652), (204, 102087), (228, 91341), (306, 68058), (323, 64476), (324, 64277), (342, 60894), (398, 52326), (459, 45372), (513, 40596), (597, 34884), (612, 34029), (646, 32238), (684, 30447), (796, 26163), (918, 22686), (969, 21492), (1026, 20298), (1194, 17442), (1292, 16119), (1377, 15124), (1539, 13532), (1791, 11628), (1836, 11343), (1938, 10746), (2052, 10149), (2388, 8721), (2754, 7562), (2907, 7164), (3078, 6766), (3383, 6156), (3582, 5814), (3781, 5508), (3876, 5373)]