25287800

素因数分解:

$2^3\times 5^2\times {\mathrm{227}}^1\times {\mathrm{557}}^1$

素因数の和:800

約数の個数: 48

約数和(自身を含む): 59159160

約数和(自身を除く): 33871360

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 227, 454, 557, 908, 1114, 1135, 1816, 2228, 2270, 2785, 4456, 4540, 5570, 5675, 9080, 11140, 11350, 13925, 22280, 22700, 27850, 45400, 55700, 111400, 126439, 252878, 505756, 632195, 1011512, 1264390, 2528780, 3160975, 5057560, 6321950, 12643900, 25287800]

約数ペア:

[(1, 25287800), (2, 12643900), (4, 6321950), (5, 5057560), (8, 3160975), (10, 2528780), (20, 1264390), (25, 1011512), (40, 632195), (50, 505756), (100, 252878), (200, 126439), (227, 111400), (454, 55700), (557, 45400), (908, 27850), (1114, 22700), (1135, 22280), (1816, 13925), (2228, 11350), (2270, 11140), (2785, 9080), (4456, 5675), (4540, 5570)]