20081208568

素因数分解:

$2^3\times {\mathrm{2503}}^1\times {\mathrm{1002857}}^1$

素因数の和:1005366

約数の個数: 16

約数和(自身を含む): 37667346480

約数和(自身を除く): 17586137912

約数列:

[1, 2, 4, 8, 2503, 5006, 10012, 20024, 1002857, 2005714, 4011428, 8022856, 2510151071, 5020302142, 10040604284, 20081208568]

約数ペア:

[(1, 20081208568), (2, 10040604284), (4, 5020302142), (8, 2510151071), (2503, 8022856), (5006, 4011428), (10012, 2005714), (20024, 1002857)]