16780460

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{4259}}^1$

素因数の和:4465

約数の個数: 24

約数和(自身を含む): 35426160

約数和(自身を除く): 18645700

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 4259, 8518, 17036, 21295, 42590, 85180, 839023, 1678046, 3356092, 4195115, 8390230, 16780460]

約数ペア:

[(1, 16780460), (2, 8390230), (4, 4195115), (5, 3356092), (10, 1678046), (20, 839023), (197, 85180), (394, 42590), (788, 21295), (985, 17036), (1970, 8518), (3940, 4259)]