56628920

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{15907}}^1$

素因数の和:16007

約数の個数: 32

約数和(自身を含む): 128854800

約数和(自身を除く): 72225880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 15907, 31814, 63628, 79535, 127256, 159070, 318140, 636280, 1415723, 2831446, 5662892, 7078615, 11325784, 14157230, 28314460, 56628920]

約数ペア:

[(1, 56628920), (2, 28314460), (4, 14157230), (5, 11325784), (8, 7078615), (10, 5662892), (20, 2831446), (40, 1415723), (89, 636280), (178, 318140), (356, 159070), (445, 127256), (712, 79535), (890, 63628), (1780, 31814), (3560, 15907)]