2190925

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:309

約数の個数: 24

約数和(自身を含む): 3071232

約数和(自身を除く): 880307

約数列:

[1, 5, 11, 25, 31, 55, 155, 257, 275, 341, 775, 1285, 1705, 2827, 6425, 7967, 8525, 14135, 39835, 70675, 87637, 199175, 438185, 2190925]

約数ペア:

[(1, 2190925), (5, 438185), (11, 199175), (25, 87637), (31, 70675), (55, 39835), (155, 14135), (257, 8525), (275, 7967), (341, 6425), (775, 2827), (1285, 1705)]