51920560

素因数分解:

$2^4\times 5^1\times {\mathrm{649007}}^1$

素因数の和:649020

約数の個数: 20

約数和(自身を含む): 120715488

約数和(自身を除く): 68794928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 649007, 1298014, 2596028, 3245035, 5192056, 6490070, 10384112, 12980140, 25960280, 51920560]

約数ペア:

[(1, 51920560), (2, 25960280), (4, 12980140), (5, 10384112), (8, 6490070), (10, 5192056), (16, 3245035), (20, 2596028), (40, 1298014), (80, 649007)]