5578840

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{661}}^1$

素因数の和:883

約数の個数: 32

約数和(自身を含む): 12630960

約数和(自身を除く): 7052120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 661, 844, 1055, 1322, 1688, 2110, 2644, 3305, 4220, 5288, 6610, 8440, 13220, 26440, 139471, 278942, 557884, 697355, 1115768, 1394710, 2789420, 5578840]

約数ペア:

[(1, 5578840), (2, 2789420), (4, 1394710), (5, 1115768), (8, 697355), (10, 557884), (20, 278942), (40, 139471), (211, 26440), (422, 13220), (661, 8440), (844, 6610), (1055, 5288), (1322, 4220), (1688, 3305), (2110, 2644)]