199207640

素因数分解:

$2^3\times 5^1\times {\mathrm{4980191}}^1$

素因数の和:4980202

約数の個数: 16

約数和(自身を含む): 448217280

約数和(自身を除く): 249009640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4980191, 9960382, 19920764, 24900955, 39841528, 49801910, 99603820, 199207640]

約数ペア:

[(1, 199207640), (2, 99603820), (4, 49801910), (5, 39841528), (8, 24900955), (10, 19920764), (20, 9960382), (40, 4980191)]