128787960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{153319}}^1$

素因数の和:153340

約数の個数: 64

約数和(自身を含む): 441561600

約数和(自身を除く): 312773640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 153319, 306638, 459957, 613276, 766595, 919914, 1073233, 1226552, 1533190, 1839828, 2146466, 2299785, 3066380, 3219699, 3679656, 4292932, 4599570, 5366165, 6132760, 6439398, 8585864, 9199140, 10732330, 12878796, 16098495, 18398280, 21464660, 25757592, 32196990, 42929320, 64393980, 128787960]

約数ペア:

[(1, 128787960), (2, 64393980), (3, 42929320), (4, 32196990), (5, 25757592), (6, 21464660), (7, 18398280), (8, 16098495), (10, 12878796), (12, 10732330), (14, 9199140), (15, 8585864), (20, 6439398), (21, 6132760), (24, 5366165), (28, 4599570), (30, 4292932), (35, 3679656), (40, 3219699), (42, 3066380), (56, 2299785), (60, 2146466), (70, 1839828), (84, 1533190), (105, 1226552), (120, 1073233), (140, 919914), (168, 766595), (210, 613276), (280, 459957), (420, 306638), (840, 153319)]