142971520

素因数分解:

$2^7\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1759}}^1$

素因数の和:1905

約数の個数: 64

約数和(自身を含む): 344678400

約数和(自身を除く): 201706880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 320, 508, 635, 640, 1016, 1270, 1759, 2032, 2540, 3518, 4064, 5080, 7036, 8128, 8795, 10160, 14072, 16256, 17590, 20320, 28144, 35180, 40640, 56288, 70360, 81280, 112576, 140720, 223393, 225152, 281440, 446786, 562880, 893572, 1116965, 1125760, 1787144, 2233930, 3574288, 4467860, 7148576, 8935720, 14297152, 17871440, 28594304, 35742880, 71485760, 142971520]

約数ペア:

[(1, 142971520), (2, 71485760), (4, 35742880), (5, 28594304), (8, 17871440), (10, 14297152), (16, 8935720), (20, 7148576), (32, 4467860), (40, 3574288), (64, 2233930), (80, 1787144), (127, 1125760), (128, 1116965), (160, 893572), (254, 562880), (320, 446786), (508, 281440), (635, 225152), (640, 223393), (1016, 140720), (1270, 112576), (1759, 81280), (2032, 70360), (2540, 56288), (3518, 40640), (4064, 35180), (5080, 28144), (7036, 20320), (8128, 17590), (8795, 16256), (10160, 14072)]