28007120

素因数分解:

$2^4\times 5^1\times {\mathrm{350089}}^1$

素因数の和:350102

約数の個数: 20

約数和(自身を含む): 65116740

約数和(自身を除く): 37109620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 350089, 700178, 1400356, 1750445, 2800712, 3500890, 5601424, 7001780, 14003560, 28007120]

約数ペア:

[(1, 28007120), (2, 14003560), (4, 7001780), (5, 5601424), (8, 3500890), (10, 2800712), (16, 1750445), (20, 1400356), (40, 700178), (80, 350089)]