27985840

素因数分解:

$2^4\times 5^1\times {\mathrm{353}}^1\times {\mathrm{991}}^1$

素因数の和:1357

約数の個数: 40

約数和(自身を含む): 65317248

約数和(自身を除く): 37331408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353, 706, 991, 1412, 1765, 1982, 2824, 3530, 3964, 4955, 5648, 7060, 7928, 9910, 14120, 15856, 19820, 28240, 39640, 79280, 349823, 699646, 1399292, 1749115, 2798584, 3498230, 5597168, 6996460, 13992920, 27985840]

約数ペア:

[(1, 27985840), (2, 13992920), (4, 6996460), (5, 5597168), (8, 3498230), (10, 2798584), (16, 1749115), (20, 1399292), (40, 699646), (80, 349823), (353, 79280), (706, 39640), (991, 28240), (1412, 19820), (1765, 15856), (1982, 14120), (2824, 9910), (3530, 7928), (3964, 7060), (4955, 5648)]