25200900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{28001}}^1$

素因数の和:28021

約数の個数: 54

約数和(自身を含む): 78993642

約数和(自身を除く): 53792742

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 900, 28001, 56002, 84003, 112004, 140005, 168006, 252009, 280010, 336012, 420015, 504018, 560020, 700025, 840030, 1008036, 1260045, 1400050, 1680060, 2100075, 2520090, 2800100, 4200150, 5040180, 6300225, 8400300, 12600450, 25200900]

約数ペア:

[(1, 25200900), (2, 12600450), (3, 8400300), (4, 6300225), (5, 5040180), (6, 4200150), (9, 2800100), (10, 2520090), (12, 2100075), (15, 1680060), (18, 1400050), (20, 1260045), (25, 1008036), (30, 840030), (36, 700025), (45, 560020), (50, 504018), (60, 420015), (75, 336012), (90, 280010), (100, 252009), (150, 168006), (180, 140005), (225, 112004), (300, 84003), (450, 56002), (900, 28001)]