131220004

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{40153}}^1$

素因数の和:40219

約数の個数: 24

約数和(自身を含む): 247348640

約数和(自身を除く): 116128636

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 172, 817, 1634, 3268, 40153, 80306, 160612, 762907, 1525814, 1726579, 3051628, 3453158, 6906316, 32805001, 65610002, 131220004]

約数ペア:

[(1, 131220004), (2, 65610002), (4, 32805001), (19, 6906316), (38, 3453158), (43, 3051628), (76, 1726579), (86, 1525814), (172, 762907), (817, 160612), (1634, 80306), (3268, 40153)]