2040259360

素因数分解:

$2^5\times 5^1\times {\mathrm{1999}}^1\times {\mathrm{6379}}^1$

素因数の和:8393

約数の個数: 48

約数和(自身を含む): 4823280000

約数和(自身を除く): 2783020640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1999, 3998, 6379, 7996, 9995, 12758, 15992, 19990, 25516, 31895, 31984, 39980, 51032, 63790, 63968, 79960, 102064, 127580, 159920, 204128, 255160, 319840, 510320, 1020640, 12751621, 25503242, 51006484, 63758105, 102012968, 127516210, 204025936, 255032420, 408051872, 510064840, 1020129680, 2040259360]

約数ペア:

[(1, 2040259360), (2, 1020129680), (4, 510064840), (5, 408051872), (8, 255032420), (10, 204025936), (16, 127516210), (20, 102012968), (32, 63758105), (40, 51006484), (80, 25503242), (160, 12751621), (1999, 1020640), (3998, 510320), (6379, 319840), (7996, 255160), (9995, 204128), (12758, 159920), (15992, 127580), (19990, 102064), (25516, 79960), (31895, 63968), (31984, 63790), (39980, 51032)]