208188560

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{661}}^1$

素因数の和:832

約数の個数: 80

約数和(自身を含む): 504348672

約数和(自身を除く): 296160112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 127, 155, 248, 254, 310, 496, 508, 620, 635, 661, 1016, 1240, 1270, 1322, 2032, 2480, 2540, 2644, 3305, 3937, 5080, 5288, 6610, 7874, 10160, 10576, 13220, 15748, 19685, 20491, 26440, 31496, 39370, 40982, 52880, 62992, 78740, 81964, 83947, 102455, 157480, 163928, 167894, 204910, 314960, 327856, 335788, 409820, 419735, 671576, 819640, 839470, 1343152, 1639280, 1678940, 2602357, 3357880, 5204714, 6715760, 10409428, 13011785, 20818856, 26023570, 41637712, 52047140, 104094280, 208188560]

約数ペア:

[(1, 208188560), (2, 104094280), (4, 52047140), (5, 41637712), (8, 26023570), (10, 20818856), (16, 13011785), (20, 10409428), (31, 6715760), (40, 5204714), (62, 3357880), (80, 2602357), (124, 1678940), (127, 1639280), (155, 1343152), (248, 839470), (254, 819640), (310, 671576), (496, 419735), (508, 409820), (620, 335788), (635, 327856), (661, 314960), (1016, 204910), (1240, 167894), (1270, 163928), (1322, 157480), (2032, 102455), (2480, 83947), (2540, 81964), (2644, 78740), (3305, 62992), (3937, 52880), (5080, 40982), (5288, 39370), (6610, 31496), (7874, 26440), (10160, 20491), (10576, 19685), (13220, 15748)]