3904540

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{991}}^1$

素因数の和:1197

約数の個数: 24

約数和(自身を含む): 8249472

約数和(自身を除く): 4344932

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 991, 1970, 1982, 3940, 3964, 4955, 9910, 19820, 195227, 390454, 780908, 976135, 1952270, 3904540]

約数ペア:

[(1, 3904540), (2, 1952270), (4, 976135), (5, 780908), (10, 390454), (20, 195227), (197, 19820), (394, 9910), (788, 4955), (985, 3964), (991, 3940), (1970, 1982)]