202153520

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1$

素因数の和:438

約数の個数: 80

約数和(自身を含む): 480826368

約数和(自身を除く): 278672848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 127, 197, 202, 254, 394, 404, 505, 508, 635, 788, 808, 985, 1010, 1016, 1270, 1576, 1616, 1970, 2020, 2032, 2540, 3152, 3940, 4040, 5080, 7880, 8080, 10160, 12827, 15760, 19897, 25019, 25654, 39794, 50038, 51308, 64135, 79588, 99485, 100076, 102616, 125095, 128270, 159176, 198970, 200152, 205232, 250190, 256540, 318352, 397940, 400304, 500380, 513080, 795880, 1000760, 1026160, 1591760, 2001520, 2526919, 5053838, 10107676, 12634595, 20215352, 25269190, 40430704, 50538380, 101076760, 202153520]

約数ペア:

[(1, 202153520), (2, 101076760), (4, 50538380), (5, 40430704), (8, 25269190), (10, 20215352), (16, 12634595), (20, 10107676), (40, 5053838), (80, 2526919), (101, 2001520), (127, 1591760), (197, 1026160), (202, 1000760), (254, 795880), (394, 513080), (404, 500380), (505, 400304), (508, 397940), (635, 318352), (788, 256540), (808, 250190), (985, 205232), (1010, 200152), (1016, 198970), (1270, 159176), (1576, 128270), (1616, 125095), (1970, 102616), (2020, 100076), (2032, 99485), (2540, 79588), (3152, 64135), (3940, 51308), (4040, 50038), (5080, 39794), (7880, 25654), (8080, 25019), (10160, 19897), (12827, 15760)]