15102020

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{3833}}^1$

素因数の和:4039

約数の個数: 24

約数和(自身を含む): 31883544

約数和(自身を除く): 16781524

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3833, 3940, 7666, 15332, 19165, 38330, 76660, 755101, 1510202, 3020404, 3775505, 7551010, 15102020]

約数ペア:

[(1, 15102020), (2, 7551010), (4, 3775505), (5, 3020404), (10, 1510202), (20, 755101), (197, 76660), (394, 38330), (788, 19165), (985, 15332), (1970, 7666), (3833, 3940)]