161820.00000000

素因数分解:

$2^3\times 5^1\times {\mathrm{1002017}}^1$

素因数の和:1002028

約数の個数: 16

約数和(自身を含む): 90181620

約数和(自身を除く): 50100940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1002017, 2004034, 4008068, 5010085, 8016136, 10020170, 20040340, 40080680]

約数ペア:

[(1, 40080680), (2, 20040340), (4, 10020170), (5, 8016136), (8, 5010085), (10, 4008068), (20, 2004034), (40, 1002017)]