28314460

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{15907}}^1$

素因数の和:16005

約数の個数: 24

約数和(自身を含む): 60132240

約数和(自身を除く): 31817780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 15907, 31814, 63628, 79535, 159070, 318140, 1415723, 2831446, 5662892, 7078615, 14157230, 28314460]

約数ペア:

[(1, 28314460), (2, 14157230), (4, 7078615), (5, 5662892), (10, 2831446), (20, 1415723), (89, 318140), (178, 159070), (356, 79535), (445, 63628), (890, 31814), (1780, 15907)]