18907280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1777}}^1$

素因数の和:1816

約数の個数: 80

約数和(自身を含む): 52913280

約数和(自身を除く): 34006000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 532, 560, 665, 760, 1064, 1330, 1520, 1777, 2128, 2660, 3554, 5320, 7108, 8885, 10640, 12439, 14216, 17770, 24878, 28432, 33763, 35540, 49756, 62195, 67526, 71080, 99512, 124390, 135052, 142160, 168815, 199024, 236341, 248780, 270104, 337630, 472682, 497560, 540208, 675260, 945364, 995120, 1181705, 1350520, 1890728, 2363410, 2701040, 3781456, 4726820, 9453640, 18907280]

約数ペア:

[(1, 18907280), (2, 9453640), (4, 4726820), (5, 3781456), (7, 2701040), (8, 2363410), (10, 1890728), (14, 1350520), (16, 1181705), (19, 995120), (20, 945364), (28, 675260), (35, 540208), (38, 497560), (40, 472682), (56, 337630), (70, 270104), (76, 248780), (80, 236341), (95, 199024), (112, 168815), (133, 142160), (140, 135052), (152, 124390), (190, 99512), (266, 71080), (280, 67526), (304, 62195), (380, 49756), (532, 35540), (560, 33763), (665, 28432), (760, 24878), (1064, 17770), (1330, 14216), (1520, 12439), (1777, 10640), (2128, 8885), (2660, 7108), (3554, 5320)]