25780900

素因数分解:

$2^2\times 5^2\times {\mathrm{103}}^1\times {\mathrm{2503}}^1$

素因数の和:2620

約数の個数: 36

約数和(自身を含む): 56510272

約数和(自身を除く): 30729372

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 103, 206, 412, 515, 1030, 2060, 2503, 2575, 5006, 5150, 10012, 10300, 12515, 25030, 50060, 62575, 125150, 250300, 257809, 515618, 1031236, 1289045, 2578090, 5156180, 6445225, 12890450, 25780900]

約数ペア:

[(1, 25780900), (2, 12890450), (4, 6445225), (5, 5156180), (10, 2578090), (20, 1289045), (25, 1031236), (50, 515618), (100, 257809), (103, 250300), (206, 125150), (412, 62575), (515, 50060), (1030, 25030), (2060, 12515), (2503, 10300), (2575, 10012), (5006, 5150)]