1990706978

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{157219}}^1$

素因数の和:157721

約数の個数: 16

約数和(自身を含む): 3222381120

約数和(自身を除く): 1231674142

約数列:

[1, 2, 13, 26, 487, 974, 6331, 12662, 157219, 314438, 2043847, 4087694, 76565653, 153131306, 995353489, 1990706978]

約数ペア:

[(1, 1990706978), (2, 995353489), (13, 153131306), (26, 76565653), (487, 4087694), (974, 2043847), (6331, 314438), (12662, 157219)]