51998480

素因数分解:

$2^4\times 5^1\times {\mathrm{649981}}^1$

素因数の和:649994

約数の個数: 20

約数和(自身を含む): 120896652

約数和(自身を除く): 68898172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 649981, 1299962, 2599924, 3249905, 5199848, 6499810, 10399696, 12999620, 25999240, 51998480]

約数ペア:

[(1, 51998480), (2, 25999240), (4, 12999620), (5, 10399696), (8, 6499810), (10, 5199848), (16, 3249905), (20, 2599924), (40, 1299962), (80, 649981)]