198200

素因数分解:

$2^3\times 5^2\times {\mathrm{991}}^1$

素因数の和:1007

約数の個数: 24

約数和(自身を含む): 461280

約数和(自身を除く): 263080

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 991, 1982, 3964, 4955, 7928, 9910, 19820, 24775, 39640, 49550, 99100, 198200]

約数ペア:

[(1, 198200), (2, 99100), (4, 49550), (5, 39640), (8, 24775), (10, 19820), (20, 9910), (25, 7928), (40, 4955), (50, 3964), (100, 1982), (200, 991)]