16271860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1999}}^1$

素因数の和:2056

約数の個数: 48

約数和(自身を含む): 38304000

約数和(自身を除く): 22032140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 1999, 2035, 3998, 4070, 7996, 8140, 9995, 19990, 21989, 39980, 43978, 73963, 87956, 109945, 147926, 219890, 295852, 369815, 439780, 739630, 813593, 1479260, 1627186, 3254372, 4067965, 8135930, 16271860]

約数ペア:

[(1, 16271860), (2, 8135930), (4, 4067965), (5, 3254372), (10, 1627186), (11, 1479260), (20, 813593), (22, 739630), (37, 439780), (44, 369815), (55, 295852), (74, 219890), (110, 147926), (148, 109945), (185, 87956), (220, 73963), (370, 43978), (407, 39980), (740, 21989), (814, 19990), (1628, 9995), (1999, 8140), (2035, 7996), (3998, 4070)]