28301868

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:316

約数の個数: 144

約数和(自身を含む): 90155520

約数和(自身を除く): 61853652

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 23, 28, 36, 38, 42, 46, 57, 63, 69, 76, 84, 92, 114, 126, 133, 138, 161, 171, 207, 228, 252, 257, 266, 276, 322, 342, 399, 414, 437, 483, 514, 532, 644, 684, 771, 798, 828, 874, 966, 1028, 1197, 1311, 1449, 1542, 1596, 1748, 1799, 1932, 2313, 2394, 2622, 2898, 3059, 3084, 3598, 3933, 4626, 4788, 4883, 5244, 5397, 5796, 5911, 6118, 7196, 7866, 9177, 9252, 9766, 10794, 11822, 12236, 14649, 15732, 16191, 17733, 18354, 19532, 21588, 23644, 27531, 29298, 32382, 34181, 35466, 36708, 41377, 43947, 53199, 55062, 58596, 64764, 68362, 70932, 82754, 87894, 102543, 106398, 110124, 112309, 124131, 136724, 165508, 175788, 205086, 212796, 224618, 248262, 307629, 336927, 372393, 410172, 449236, 496524, 615258, 673854, 744786, 786163, 1010781, 1230516, 1347708, 1489572, 1572326, 2021562, 2358489, 3144652, 4043124, 4716978, 7075467, 9433956, 14150934, 28301868]

約数ペア:

[(1, 28301868), (2, 14150934), (3, 9433956), (4, 7075467), (6, 4716978), (7, 4043124), (9, 3144652), (12, 2358489), (14, 2021562), (18, 1572326), (19, 1489572), (21, 1347708), (23, 1230516), (28, 1010781), (36, 786163), (38, 744786), (42, 673854), (46, 615258), (57, 496524), (63, 449236), (69, 410172), (76, 372393), (84, 336927), (92, 307629), (114, 248262), (126, 224618), (133, 212796), (138, 205086), (161, 175788), (171, 165508), (207, 136724), (228, 124131), (252, 112309), (257, 110124), (266, 106398), (276, 102543), (322, 87894), (342, 82754), (399, 70932), (414, 68362), (437, 64764), (483, 58596), (514, 55062), (532, 53199), (644, 43947), (684, 41377), (771, 36708), (798, 35466), (828, 34181), (874, 32382), (966, 29298), (1028, 27531), (1197, 23644), (1311, 21588), (1449, 19532), (1542, 18354), (1596, 17733), (1748, 16191), (1799, 15732), (1932, 14649), (2313, 12236), (2394, 11822), (2622, 10794), (2898, 9766), (3059, 9252), (3084, 9177), (3598, 7866), (3933, 7196), (4626, 6118), (4788, 5911), (4883, 5796), (5244, 5397)]