13081280

素因数分解:

$2^6\times 5^1\times {\mathrm{40879}}^1$

素因数の和:40896

約数の個数: 28

約数和(自身を含む): 31150560

約数和(自身を除く): 18069280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 40879, 81758, 163516, 204395, 327032, 408790, 654064, 817580, 1308128, 1635160, 2616256, 3270320, 6540640, 13081280]

約数ペア:

[(1, 13081280), (2, 6540640), (4, 3270320), (5, 2616256), (8, 1635160), (10, 1308128), (16, 817580), (20, 654064), (32, 408790), (40, 327032), (64, 204395), (80, 163516), (160, 81758), (320, 40879)]