1988725690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{69463}}^1$

素因数の和:69886

約数の個数: 32

約数和(自身を含む): 4101154560

約数和(自身を除く): 2112428870

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 409, 818, 2045, 2863, 4090, 5726, 14315, 28630, 69463, 138926, 347315, 486241, 694630, 972482, 2431205, 4862410, 28410367, 56820734, 142051835, 198872569, 284103670, 397745138, 994362845, 1988725690]

約数ペア:

[(1, 1988725690), (2, 994362845), (5, 397745138), (7, 284103670), (10, 198872569), (14, 142051835), (35, 56820734), (70, 28410367), (409, 4862410), (818, 2431205), (2045, 972482), (2863, 694630), (4090, 486241), (5726, 347315), (14315, 138926), (28630, 69463)]