177997580

素因数分解:

$2^2\times 5^1\times {\mathrm{2143}}^1\times {\mathrm{4153}}^1$

素因数の和:6305

約数の個数: 24

約数和(自身を含む): 374059392

約数和(自身を除く): 196061812

約数列:

[1, 2, 4, 5, 10, 20, 2143, 4153, 4286, 8306, 8572, 10715, 16612, 20765, 21430, 41530, 42860, 83060, 8899879, 17799758, 35599516, 44499395, 88998790, 177997580]

約数ペア:

[(1, 177997580), (2, 88998790), (4, 44499395), (5, 35599516), (10, 17799758), (20, 8899879), (2143, 83060), (4153, 42860), (4286, 41530), (8306, 21430), (8572, 20765), (10715, 16612)]