51327560

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{2521}}^1$

素因数の和:3041

約数の個数: 32

約数和(自身を含む): 115759800

約数和(自身を除く): 64432240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 2036, 2521, 2545, 4072, 5042, 5090, 10084, 10180, 12605, 20168, 20360, 25210, 50420, 100840, 1283189, 2566378, 5132756, 6415945, 10265512, 12831890, 25663780, 51327560]

約数ペア:

[(1, 51327560), (2, 25663780), (4, 12831890), (5, 10265512), (8, 6415945), (10, 5132756), (20, 2566378), (40, 1283189), (509, 100840), (1018, 50420), (2036, 25210), (2521, 20360), (2545, 20168), (4072, 12605), (5042, 10180), (5090, 10084)]