19994080

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6577}}^1$

素因数の和:6611

約数の個数: 48

約数和(自身を含む): 49729680

約数和(自身を除く): 29735600

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 6577, 13154, 26308, 32885, 52616, 65770, 105232, 124963, 131540, 210464, 249926, 263080, 499852, 526160, 624815, 999704, 1052320, 1249630, 1999408, 2499260, 3998816, 4998520, 9997040, 19994080]

約数ペア:

[(1, 19994080), (2, 9997040), (4, 4998520), (5, 3998816), (8, 2499260), (10, 1999408), (16, 1249630), (19, 1052320), (20, 999704), (32, 624815), (38, 526160), (40, 499852), (76, 263080), (80, 249926), (95, 210464), (152, 131540), (160, 124963), (190, 105232), (304, 65770), (380, 52616), (608, 32885), (760, 26308), (1520, 13154), (3040, 6577)]