20504008

素因数分解:

$2^3\times 7^1\times {\mathrm{281}}^1\times {\mathrm{1303}}^1$

素因数の和:1597

約数の個数: 32

約数和(自身を含む): 44127360

約数和(自身を除く): 23623352

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 281, 562, 1124, 1303, 1967, 2248, 2606, 3934, 5212, 7868, 9121, 10424, 15736, 18242, 36484, 72968, 366143, 732286, 1464572, 2563001, 2929144, 5126002, 10252004, 20504008]

約数ペア:

[(1, 20504008), (2, 10252004), (4, 5126002), (7, 2929144), (8, 2563001), (14, 1464572), (28, 732286), (56, 366143), (281, 72968), (562, 36484), (1124, 18242), (1303, 15736), (1967, 10424), (2248, 9121), (2606, 7868), (3934, 5212)]