31391080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{112111}}^1$

素因数の和:112129

約数の個数: 32

約数和(自身を含む): 80720640

約数和(自身を除く): 49329560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 112111, 224222, 448444, 560555, 784777, 896888, 1121110, 1569554, 2242220, 3139108, 3923885, 4484440, 6278216, 7847770, 15695540, 31391080]

約数ペア:

[(1, 31391080), (2, 15695540), (4, 7847770), (5, 6278216), (7, 4484440), (8, 3923885), (10, 3139108), (14, 2242220), (20, 1569554), (28, 1121110), (35, 896888), (40, 784777), (56, 560555), (70, 448444), (140, 224222), (280, 112111)]