1691890

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1901}}^1$

素因数の和:1997

約数の個数: 16

約数和(自身を含む): 3081240

約数和(自身を除く): 1389350

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 1901, 3802, 9505, 19010, 169189, 338378, 845945, 1691890]

約数ペア:

[(1, 1691890), (2, 845945), (5, 338378), (10, 169189), (89, 19010), (178, 9505), (445, 3802), (890, 1901)]