129260440

素因数分解:

$2^3\times 5^1\times {\mathrm{3231511}}^1$

素因数の和:3231522

約数の個数: 16

約数和(自身を含む): 290836080

約数和(自身を除く): 161575640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3231511, 6463022, 12926044, 16157555, 25852088, 32315110, 64630220, 129260440]

約数ペア:

[(1, 129260440), (2, 64630220), (4, 32315110), (5, 25852088), (8, 16157555), (10, 12926044), (20, 6463022), (40, 3231511)]