15721405730

素因数分解:

$2^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{7980409}}^1$

素因数の和:7980613

約数の個数: 16

約数和(自身を含む): 28442181240

約数和(自身を除く): 12720775510

約数列:

[1, 2, 5, 10, 197, 394, 985, 1970, 7980409, 15960818, 39902045, 79804090, 1572140573, 3144281146, 7860702865, 15721405730]

約数ペア:

[(1, 15721405730), (2, 7860702865), (5, 3144281146), (10, 1572140573), (197, 79804090), (394, 39902045), (985, 15960818), (1970, 7980409)]