280988560

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{74731}}^1$

素因数の和:74791

約数の個数: 40

約数和(自身を含む): 667207296

約数和(自身を除く): 386218736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 74731, 149462, 298924, 373655, 597848, 747310, 1195696, 1494620, 2989240, 3512357, 5978480, 7024714, 14049428, 17561785, 28098856, 35123570, 56197712, 70247140, 140494280, 280988560]

約数ペア:

[(1, 280988560), (2, 140494280), (4, 70247140), (5, 56197712), (8, 35123570), (10, 28098856), (16, 17561785), (20, 14049428), (40, 7024714), (47, 5978480), (80, 3512357), (94, 2989240), (188, 1494620), (235, 1195696), (376, 747310), (470, 597848), (752, 373655), (940, 298924), (1880, 149462), (3760, 74731)]