19990698

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:132

約数の個数: 128

約数和(自身を含む): 54190080

約数和(自身を除く): 34199382

約数列:

[1, 2, 3, 6, 7, 13, 14, 19, 21, 26, 38, 39, 41, 42, 47, 57, 78, 82, 91, 94, 114, 123, 133, 141, 182, 246, 247, 266, 273, 282, 287, 329, 399, 494, 533, 546, 574, 611, 658, 741, 779, 798, 861, 893, 987, 1066, 1222, 1482, 1558, 1599, 1722, 1729, 1786, 1833, 1927, 1974, 2337, 2679, 3198, 3458, 3666, 3731, 3854, 4277, 4674, 5187, 5358, 5453, 5781, 6251, 7462, 8554, 10127, 10374, 10906, 11193, 11562, 11609, 12502, 12831, 13489, 16359, 18753, 20254, 22386, 23218, 25051, 25662, 26978, 30381, 32718, 34827, 36613, 37506, 40467, 50102, 60762, 69654, 70889, 73226, 75153, 80934, 81263, 109839, 141778, 150306, 162526, 175357, 212667, 219678, 243789, 256291, 350714, 425334, 475969, 487578, 512582, 526071, 768873, 951938, 1052142, 1427907, 1537746, 2855814, 3331783, 6663566, 9995349, 19990698]

約数ペア:

[(1, 19990698), (2, 9995349), (3, 6663566), (6, 3331783), (7, 2855814), (13, 1537746), (14, 1427907), (19, 1052142), (21, 951938), (26, 768873), (38, 526071), (39, 512582), (41, 487578), (42, 475969), (47, 425334), (57, 350714), (78, 256291), (82, 243789), (91, 219678), (94, 212667), (114, 175357), (123, 162526), (133, 150306), (141, 141778), (182, 109839), (246, 81263), (247, 80934), (266, 75153), (273, 73226), (282, 70889), (287, 69654), (329, 60762), (399, 50102), (494, 40467), (533, 37506), (546, 36613), (574, 34827), (611, 32718), (658, 30381), (741, 26978), (779, 25662), (798, 25051), (861, 23218), (893, 22386), (987, 20254), (1066, 18753), (1222, 16359), (1482, 13489), (1558, 12831), (1599, 12502), (1722, 11609), (1729, 11562), (1786, 11193), (1833, 10906), (1927, 10374), (1974, 10127), (2337, 8554), (2679, 7462), (3198, 6251), (3458, 5781), (3666, 5453), (3731, 5358), (3854, 5187), (4277, 4674)]