28008880

素因数分解:

$2^4\times 5^1\times {\mathrm{350111}}^1$

素因数の和:350124

約数の個数: 20

約数和(自身を含む): 65120832

約数和(自身を除く): 37111952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 350111, 700222, 1400444, 1750555, 2800888, 3501110, 5601776, 7002220, 14004440, 28008880]

約数ペア:

[(1, 28008880), (2, 14004440), (4, 7002220), (5, 5601776), (8, 3501110), (10, 2800888), (16, 1750555), (20, 1400444), (40, 700222), (80, 350111)]