20020825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1549}}^1$

素因数の和:1617

約数の個数: 24

約数和(自身を含む): 27676800

約数和(自身を除く): 7655975

約数列:

[1, 5, 11, 25, 47, 55, 235, 275, 517, 1175, 1549, 2585, 7745, 12925, 17039, 38725, 72803, 85195, 364015, 425975, 800833, 1820075, 4004165, 20020825]

約数ペア:

[(1, 20020825), (5, 4004165), (11, 1820075), (25, 800833), (47, 425975), (55, 364015), (235, 85195), (275, 72803), (517, 38725), (1175, 17039), (1549, 12925), (2585, 7745)]