638193582

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{359}}^1$

素因数の和:558

約数の個数: 96

約数和(自身を含む): 1528450560

約数和(自身を除く): 890256978

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 71, 78, 107, 117, 142, 213, 214, 234, 321, 359, 426, 639, 642, 718, 923, 963, 1077, 1278, 1391, 1846, 1926, 2154, 2769, 2782, 3231, 4173, 4667, 5538, 6462, 7597, 8307, 8346, 9334, 12519, 14001, 15194, 16614, 22791, 25038, 25489, 28002, 38413, 42003, 45582, 50978, 68373, 76467, 76826, 84006, 98761, 115239, 136746, 152934, 197522, 229401, 230478, 296283, 331357, 345717, 458802, 499369, 592566, 662714, 691434, 888849, 994071, 998738, 1498107, 1777698, 1988142, 2727323, 2982213, 2996214, 4494321, 5454646, 5964426, 8181969, 8988642, 16363938, 24545907, 35455199, 49091814, 70910398, 106365597, 212731194, 319096791, 638193582]

約数ペア:

[(1, 638193582), (2, 319096791), (3, 212731194), (6, 106365597), (9, 70910398), (13, 49091814), (18, 35455199), (26, 24545907), (39, 16363938), (71, 8988642), (78, 8181969), (107, 5964426), (117, 5454646), (142, 4494321), (213, 2996214), (214, 2982213), (234, 2727323), (321, 1988142), (359, 1777698), (426, 1498107), (639, 998738), (642, 994071), (718, 888849), (923, 691434), (963, 662714), (1077, 592566), (1278, 499369), (1391, 458802), (1846, 345717), (1926, 331357), (2154, 296283), (2769, 230478), (2782, 229401), (3231, 197522), (4173, 152934), (4667, 136746), (5538, 115239), (6462, 98761), (7597, 84006), (8307, 76826), (8346, 76467), (9334, 68373), (12519, 50978), (14001, 45582), (15194, 42003), (16614, 38413), (22791, 28002), (25038, 25489)]