3995440

素因数分解:

$2^4\times 5^1\times {\mathrm{49943}}^1$

素因数の和:49956

約数の個数: 20

約数和(自身を含む): 9289584

約数和(自身を除く): 5294144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 49943, 99886, 199772, 249715, 399544, 499430, 799088, 998860, 1997720, 3995440]

約数ペア:

[(1, 3995440), (2, 1997720), (4, 998860), (5, 799088), (8, 499430), (10, 399544), (16, 249715), (20, 199772), (40, 99886), (80, 49943)]