210819920

素因数分解:

$2^4\times 5^1\times {\mathrm{251}}^1\times {\mathrm{10499}}^1$

素因数の和:10763

約数の個数: 40

約数和(自身を含む): 492156000

約数和(自身を除く): 281336080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251, 502, 1004, 1255, 2008, 2510, 4016, 5020, 10040, 10499, 20080, 20998, 41996, 52495, 83992, 104990, 167984, 209980, 419960, 839920, 2635249, 5270498, 10540996, 13176245, 21081992, 26352490, 42163984, 52704980, 105409960, 210819920]

約数ペア:

[(1, 210819920), (2, 105409960), (4, 52704980), (5, 42163984), (8, 26352490), (10, 21081992), (16, 13176245), (20, 10540996), (40, 5270498), (80, 2635249), (251, 839920), (502, 419960), (1004, 209980), (1255, 167984), (2008, 104990), (2510, 83992), (4016, 52495), (5020, 41996), (10040, 20998), (10499, 20080)]