20566728

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:148

約数の個数: 192

約数和(自身を含む): 71111040

約数和(自身を除く): 50544312

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 18, 21, 24, 26, 28, 36, 39, 42, 43, 52, 56, 63, 72, 73, 78, 84, 86, 91, 104, 117, 126, 129, 146, 156, 168, 172, 182, 219, 234, 252, 258, 273, 292, 301, 312, 344, 364, 387, 438, 468, 504, 511, 516, 546, 559, 584, 602, 657, 728, 774, 819, 876, 903, 936, 949, 1022, 1032, 1092, 1118, 1204, 1314, 1533, 1548, 1638, 1677, 1752, 1806, 1898, 2044, 2184, 2236, 2408, 2628, 2709, 2847, 3066, 3096, 3139, 3276, 3354, 3612, 3796, 3913, 4088, 4472, 4599, 5031, 5256, 5418, 5694, 6132, 6278, 6552, 6643, 6708, 7224, 7592, 7826, 8541, 9198, 9417, 10062, 10836, 11388, 11739, 12264, 12556, 13286, 13416, 15652, 17082, 18396, 18834, 19929, 20124, 21672, 21973, 22776, 23478, 25112, 26572, 28251, 31304, 34164, 35217, 36792, 37668, 39858, 40248, 40807, 43946, 46956, 53144, 56502, 59787, 65919, 68328, 70434, 75336, 79716, 81614, 87892, 93912, 113004, 119574, 122421, 131838, 140868, 159432, 163228, 175784, 197757, 226008, 239148, 244842, 263676, 281736, 285649, 326456, 367263, 395514, 478296, 489684, 527352, 571298, 734526, 791028, 856947, 979368, 1142596, 1469052, 1582056, 1713894, 2285192, 2570841, 2938104, 3427788, 5141682, 6855576, 10283364, 20566728]

約数ペア:

[(1, 20566728), (2, 10283364), (3, 6855576), (4, 5141682), (6, 3427788), (7, 2938104), (8, 2570841), (9, 2285192), (12, 1713894), (13, 1582056), (14, 1469052), (18, 1142596), (21, 979368), (24, 856947), (26, 791028), (28, 734526), (36, 571298), (39, 527352), (42, 489684), (43, 478296), (52, 395514), (56, 367263), (63, 326456), (72, 285649), (73, 281736), (78, 263676), (84, 244842), (86, 239148), (91, 226008), (104, 197757), (117, 175784), (126, 163228), (129, 159432), (146, 140868), (156, 131838), (168, 122421), (172, 119574), (182, 113004), (219, 93912), (234, 87892), (252, 81614), (258, 79716), (273, 75336), (292, 70434), (301, 68328), (312, 65919), (344, 59787), (364, 56502), (387, 53144), (438, 46956), (468, 43946), (504, 40807), (511, 40248), (516, 39858), (546, 37668), (559, 36792), (584, 35217), (602, 34164), (657, 31304), (728, 28251), (774, 26572), (819, 25112), (876, 23478), (903, 22776), (936, 21973), (949, 21672), (1022, 20124), (1032, 19929), (1092, 18834), (1118, 18396), (1204, 17082), (1314, 15652), (1533, 13416), (1548, 13286), (1638, 12556), (1677, 12264), (1752, 11739), (1806, 11388), (1898, 10836), (2044, 10062), (2184, 9417), (2236, 9198), (2408, 8541), (2628, 7826), (2709, 7592), (2847, 7224), (3066, 6708), (3096, 6643), (3139, 6552), (3276, 6278), (3354, 6132), (3612, 5694), (3796, 5418), (3913, 5256), (4088, 5031), (4472, 4599)]