31377680

素因数分解:

$2^4\times 5^1\times {\mathrm{392221}}^1$

素因数の和:392234

約数の個数: 20

約数和(自身を含む): 72953292

約数和(自身を除く): 41575612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 392221, 784442, 1568884, 1961105, 3137768, 3922210, 6275536, 7844420, 15688840, 31377680]

約数ペア:

[(1, 31377680), (2, 15688840), (4, 7844420), (5, 6275536), (8, 3922210), (10, 3137768), (16, 1961105), (20, 1568884), (40, 784442), (80, 392221)]