28353380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128879}}^1$

素因数の和:128899

約数の個数: 24

約数和(自身を含む): 64955520

約数和(自身を除く): 36602140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 128879, 257758, 515516, 644395, 1288790, 1417669, 2577580, 2835338, 5670676, 7088345, 14176690, 28353380]

約数ペア:

[(1, 28353380), (2, 14176690), (4, 7088345), (5, 5670676), (10, 2835338), (11, 2577580), (20, 1417669), (22, 1288790), (44, 644395), (55, 515516), (110, 257758), (220, 128879)]