138613628180

素因数分解:

$2^2\times 5^1\times {\mathrm{15809}}^1\times {\mathrm{438401}}^1$

素因数の和:454219

約数の個数: 24

約数和(自身を含む): 291107696040

約数和(自身を除く): 152494067860

約数列:

[1, 2, 4, 5, 10, 20, 15809, 31618, 63236, 79045, 158090, 316180, 438401, 876802, 1753604, 2192005, 4384010, 8768020, 6930681409, 13861362818, 27722725636, 34653407045, 69306814090, 138613628180]

約数ペア:

[(1, 138613628180), (2, 69306814090), (4, 34653407045), (5, 27722725636), (10, 13861362818), (20, 6930681409), (15809, 8768020), (31618, 4384010), (63236, 2192005), (79045, 1753604), (158090, 876802), (316180, 438401)]