25654000

素因数分解:

$2^4\times 5^3\times {\mathrm{101}}^1\times {\mathrm{127}}^1$

素因数の和:251

約数の個数: 80

約数和(自身を含む): 63138816

約数和(自身を除く): 37484816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 101, 125, 127, 200, 202, 250, 254, 400, 404, 500, 505, 508, 635, 808, 1000, 1010, 1016, 1270, 1616, 2000, 2020, 2032, 2525, 2540, 3175, 4040, 5050, 5080, 6350, 8080, 10100, 10160, 12625, 12700, 12827, 15875, 20200, 25250, 25400, 25654, 31750, 40400, 50500, 50800, 51308, 63500, 64135, 101000, 102616, 127000, 128270, 202000, 205232, 254000, 256540, 320675, 513080, 641350, 1026160, 1282700, 1603375, 2565400, 3206750, 5130800, 6413500, 12827000, 25654000]

約数ペア:

[(1, 25654000), (2, 12827000), (4, 6413500), (5, 5130800), (8, 3206750), (10, 2565400), (16, 1603375), (20, 1282700), (25, 1026160), (40, 641350), (50, 513080), (80, 320675), (100, 256540), (101, 254000), (125, 205232), (127, 202000), (200, 128270), (202, 127000), (250, 102616), (254, 101000), (400, 64135), (404, 63500), (500, 51308), (505, 50800), (508, 50500), (635, 40400), (808, 31750), (1000, 25654), (1010, 25400), (1016, 25250), (1270, 20200), (1616, 15875), (2000, 12827), (2020, 12700), (2032, 12625), (2525, 10160), (2540, 10100), (3175, 8080), (4040, 6350), (5050, 5080)]