128415567

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:256

約数の個数: 64

約数和(自身を含む): 214502400

約数和(自身を除く): 86086833

約数列:

[1, 3, 7, 21, 29, 37, 41, 87, 111, 123, 139, 203, 259, 287, 417, 609, 777, 861, 973, 1073, 1189, 1517, 2919, 3219, 3567, 4031, 4551, 5143, 5699, 7511, 8323, 10619, 12093, 15429, 17097, 22533, 24969, 28217, 31857, 36001, 39893, 43993, 84651, 108003, 119679, 131979, 149147, 165271, 210863, 307951, 447441, 495813, 632589, 923853, 1044029, 1156897, 1476041, 3132087, 3470691, 4428123, 6115027, 18345081, 42805189, 128415567]

約数ペア:

[(1, 128415567), (3, 42805189), (7, 18345081), (21, 6115027), (29, 4428123), (37, 3470691), (41, 3132087), (87, 1476041), (111, 1156897), (123, 1044029), (139, 923853), (203, 632589), (259, 495813), (287, 447441), (417, 307951), (609, 210863), (777, 165271), (861, 149147), (973, 131979), (1073, 119679), (1189, 108003), (1517, 84651), (2919, 43993), (3219, 39893), (3567, 36001), (4031, 31857), (4551, 28217), (5143, 24969), (5699, 22533), (7511, 17097), (8323, 15429), (10619, 12093)]