51560560

素因数分解:

$2^4\times 5^1\times {\mathrm{644507}}^1$

素因数の和:644520

約数の個数: 20

約数和(自身を含む): 119878488

約数和(自身を除く): 68317928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 644507, 1289014, 2578028, 3222535, 5156056, 6445070, 10312112, 12890140, 25780280, 51560560]

約数ペア:

[(1, 51560560), (2, 25780280), (4, 12890140), (5, 10312112), (8, 6445070), (10, 5156056), (16, 3222535), (20, 2578028), (40, 1289014), (80, 644507)]