25400240

素因数分解:

$2^4\times 5^1\times {\mathrm{317503}}^1$

素因数の和:317516

約数の個数: 20

約数和(自身を含む): 59055744

約数和(自身を除く): 33655504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 317503, 635006, 1270012, 1587515, 2540024, 3175030, 5080048, 6350060, 12700120, 25400240]

約数ペア:

[(1, 25400240), (2, 12700120), (4, 6350060), (5, 5080048), (8, 3175030), (10, 2540024), (16, 1587515), (20, 1270012), (40, 635006), (80, 317503)]