28404460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{202889}}^1$

素因数の和:202905

約数の個数: 24

約数和(自身を含む): 68171040

約数和(自身を除く): 39766580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 202889, 405778, 811556, 1014445, 1420223, 2028890, 2840446, 4057780, 5680892, 7101115, 14202230, 28404460]

約数ペア:

[(1, 28404460), (2, 14202230), (4, 7101115), (5, 5680892), (7, 4057780), (10, 2840446), (14, 2028890), (20, 1420223), (28, 1014445), (35, 811556), (70, 405778), (140, 202889)]