219725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1$

素因数の和:85

約数の個数: 24

約数和(自身を含む): 321408

約数和(自身を除く): 101683

約数列:

[1, 5, 11, 17, 25, 47, 55, 85, 187, 235, 275, 425, 517, 799, 935, 1175, 2585, 3995, 4675, 8789, 12925, 19975, 43945, 219725]

約数ペア:

[(1, 219725), (5, 43945), (11, 19975), (17, 12925), (25, 8789), (47, 4675), (55, 3995), (85, 2585), (187, 1175), (235, 935), (275, 799), (425, 517)]