2001520

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1$

素因数の和:337

約数の個数: 40

約数和(自身を含む): 4713984

約数和(自身を除く): 2712464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 197, 254, 394, 508, 635, 788, 985, 1016, 1270, 1576, 1970, 2032, 2540, 3152, 3940, 5080, 7880, 10160, 15760, 25019, 50038, 100076, 125095, 200152, 250190, 400304, 500380, 1000760, 2001520]

約数ペア:

[(1, 2001520), (2, 1000760), (4, 500380), (5, 400304), (8, 250190), (10, 200152), (16, 125095), (20, 100076), (40, 50038), (80, 25019), (127, 15760), (197, 10160), (254, 7880), (394, 5080), (508, 3940), (635, 3152), (788, 2540), (985, 2032), (1016, 1970), (1270, 1576)]