15984580

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{4057}}^1$

素因数の和:4263

約数の個数: 24

約数和(自身を含む): 33746328

約数和(自身を除く): 17761748

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 4057, 8114, 16228, 20285, 40570, 81140, 799229, 1598458, 3196916, 3996145, 7992290, 15984580]

約数ペア:

[(1, 15984580), (2, 7992290), (4, 3996145), (5, 3196916), (10, 1598458), (20, 799229), (197, 81140), (394, 40570), (788, 20285), (985, 16228), (1970, 8114), (3940, 4057)]