12656420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{90403}}^1$

素因数の和:90419

約数の個数: 24

約数和(自身を含む): 30375744

約数和(自身を除く): 17719324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 90403, 180806, 361612, 452015, 632821, 904030, 1265642, 1808060, 2531284, 3164105, 6328210, 12656420]

約数ペア:

[(1, 12656420), (2, 6328210), (4, 3164105), (5, 2531284), (7, 1808060), (10, 1265642), (14, 904030), (20, 632821), (28, 452015), (35, 361612), (70, 180806), (140, 90403)]