204449680

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{20123}}^1$

素因数の和:20263

約数の個数: 40

約数和(自身を含む): 479112192

約数和(自身を除く): 274662512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 10160, 20123, 40246, 80492, 100615, 160984, 201230, 321968, 402460, 804920, 1609840, 2555621, 5111242, 10222484, 12778105, 20444968, 25556210, 40889936, 51112420, 102224840, 204449680]

約数ペア:

[(1, 204449680), (2, 102224840), (4, 51112420), (5, 40889936), (8, 25556210), (10, 20444968), (16, 12778105), (20, 10222484), (40, 5111242), (80, 2555621), (127, 1609840), (254, 804920), (508, 402460), (635, 321968), (1016, 201230), (1270, 160984), (2032, 100615), (2540, 80492), (5080, 40246), (10160, 20123)]