404004

素因数分解:

$2^2\times 3^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:395

約数の個数: 24

約数和(自身を含む): 953568

約数和(自身を除く): 549564

約数列:

[1, 2, 3, 4, 6, 12, 131, 257, 262, 393, 514, 524, 771, 786, 1028, 1542, 1572, 3084, 33667, 67334, 101001, 134668, 202002, 404004]

約数ペア:

[(1, 404004), (2, 202002), (3, 134668), (4, 101001), (6, 67334), (12, 33667), (131, 3084), (257, 1572), (262, 1542), (393, 1028), (514, 786), (524, 771)]