51350480

素因数分解:

$2^4\times 5^1\times {\mathrm{641881}}^1$

素因数の和:641894

約数の個数: 20

約数和(自身を含む): 119390052

約数和(自身を除く): 68039572

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 641881, 1283762, 2567524, 3209405, 5135048, 6418810, 10270096, 12837620, 25675240, 51350480]

約数ペア:

[(1, 51350480), (2, 25675240), (4, 12837620), (5, 10270096), (8, 6418810), (10, 5135048), (16, 3209405), (20, 2567524), (40, 1283762), (80, 641881)]