157428140

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{16433}}^1$

素因数の和:16921

約数の個数: 24

約数和(自身を含む): 331309440

約数和(自身を除く): 173881300

約数列:

[1, 2, 4, 5, 10, 20, 479, 958, 1916, 2395, 4790, 9580, 16433, 32866, 65732, 82165, 164330, 328660, 7871407, 15742814, 31485628, 39357035, 78714070, 157428140]

約数ペア:

[(1, 157428140), (2, 78714070), (4, 39357035), (5, 31485628), (10, 15742814), (20, 7871407), (479, 328660), (958, 164330), (1916, 82165), (2395, 65732), (4790, 32866), (9580, 16433)]