128571835

素因数分解:

$5^1\times 7^3\times {\mathrm{61}}^1\times {\mathrm{1229}}^1$

素因数の和:1316

約数の個数: 32

約数和(自身を含む): 183024000

約数和(自身を除く): 54452165

約数列:

[1, 5, 7, 35, 49, 61, 245, 305, 343, 427, 1229, 1715, 2135, 2989, 6145, 8603, 14945, 20923, 43015, 60221, 74969, 104615, 301105, 374845, 421547, 524783, 2107735, 2623915, 3673481, 18367405, 25714367, 128571835]

約数ペア:

[(1, 128571835), (5, 25714367), (7, 18367405), (35, 3673481), (49, 2623915), (61, 2107735), (245, 524783), (305, 421547), (343, 374845), (427, 301105), (1229, 104615), (1715, 74969), (2135, 60221), (2989, 43015), (6145, 20923), (8603, 14945)]