3998200

素因数分解:

$2^3\times 5^2\times {\mathrm{19991}}^1$

素因数の和:20007

約数の個数: 24

約数和(自身を含む): 9296280

約数和(自身を除く): 5298080

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 19991, 39982, 79964, 99955, 159928, 199910, 399820, 499775, 799640, 999550, 1999100, 3998200]

約数ペア:

[(1, 3998200), (2, 1999100), (4, 999550), (5, 799640), (8, 499775), (10, 399820), (20, 199910), (25, 159928), (40, 99955), (50, 79964), (100, 39982), (200, 19991)]