15631120

素因数分解:

$2^4\times 5^1\times {\mathrm{195389}}^1$

素因数の和:195402

約数の個数: 20

約数和(自身を含む): 36342540

約数和(自身を除く): 20711420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 195389, 390778, 781556, 976945, 1563112, 1953890, 3126224, 3907780, 7815560, 15631120]

約数ペア:

[(1, 15631120), (2, 7815560), (4, 3907780), (5, 3126224), (8, 1953890), (10, 1563112), (16, 976945), (20, 781556), (40, 390778), (80, 195389)]