1997359078

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:314

約数の個数: 128

約数和(自身を含む): 3901685760

約数和(自身を除く): 1904326682

約数列:

[1, 2, 11, 13, 19, 22, 26, 31, 38, 62, 71, 142, 143, 167, 209, 247, 286, 334, 341, 403, 418, 494, 589, 682, 781, 806, 923, 1178, 1349, 1562, 1837, 1846, 2171, 2201, 2698, 2717, 3173, 3674, 4342, 4402, 4433, 5177, 5434, 6346, 6479, 7657, 8866, 10153, 10354, 11857, 12958, 14839, 15314, 17537, 20306, 23714, 23881, 24211, 28613, 29678, 34903, 35074, 41249, 41819, 47762, 48422, 56947, 57226, 67301, 69806, 82498, 83638, 84227, 98363, 113894, 130427, 134602, 154141, 168454, 192907, 196726, 225283, 260854, 308282, 314743, 367567, 385814, 450566, 453739, 460009, 543647, 629486, 735134, 740311, 907478, 920018, 1081993, 1087294, 1278719, 1480622, 1695551, 2163986, 2478113, 2557438, 2928679, 3391102, 4043237, 4778371, 4956226, 5857358, 5980117, 6983773, 8086474, 9556742, 11960234, 13967546, 14065909, 28131818, 32215469, 52562081, 64430938, 76821503, 90789049, 105124162, 153643006, 181578098, 998679539, 1997359078]

約数ペア:

[(1, 1997359078), (2, 998679539), (11, 181578098), (13, 153643006), (19, 105124162), (22, 90789049), (26, 76821503), (31, 64430938), (38, 52562081), (62, 32215469), (71, 28131818), (142, 14065909), (143, 13967546), (167, 11960234), (209, 9556742), (247, 8086474), (286, 6983773), (334, 5980117), (341, 5857358), (403, 4956226), (418, 4778371), (494, 4043237), (589, 3391102), (682, 2928679), (781, 2557438), (806, 2478113), (923, 2163986), (1178, 1695551), (1349, 1480622), (1562, 1278719), (1837, 1087294), (1846, 1081993), (2171, 920018), (2201, 907478), (2698, 740311), (2717, 735134), (3173, 629486), (3674, 543647), (4342, 460009), (4402, 453739), (4433, 450566), (5177, 385814), (5434, 367567), (6346, 314743), (6479, 308282), (7657, 260854), (8866, 225283), (10153, 196726), (10354, 192907), (11857, 168454), (12958, 154141), (14839, 134602), (15314, 130427), (17537, 113894), (20306, 98363), (23714, 84227), (23881, 83638), (24211, 82498), (28613, 69806), (29678, 67301), (34903, 57226), (35074, 56947), (41249, 48422), (41819, 47762)]