521492560

素因数分解:

$2^4\times 5^1\times {\mathrm{6518657}}^1$

素因数の和:6518670

約数の個数: 20

約数和(自身を含む): 1212470388

約数和(自身を除く): 690977828

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 6518657, 13037314, 26074628, 32593285, 52149256, 65186570, 104298512, 130373140, 260746280, 521492560]

約数ペア:

[(1, 521492560), (2, 260746280), (4, 130373140), (5, 104298512), (8, 65186570), (10, 52149256), (16, 32593285), (20, 26074628), (40, 13037314), (80, 6518657)]