28007440

素因数分解:

$2^4\times 5^1\times {\mathrm{350093}}^1$

素因数の和:350106

約数の個数: 20

約数和(自身を含む): 65117484

約数和(自身を除く): 37110044

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 350093, 700186, 1400372, 1750465, 2800744, 3500930, 5601488, 7001860, 14003720, 28007440]

約数ペア:

[(1, 28007440), (2, 14003720), (4, 7001860), (5, 5601488), (8, 3500930), (10, 2800744), (16, 1750465), (20, 1400372), (40, 700186), (80, 350093)]