25424840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{90803}}^1$

素因数の和:90821

約数の個数: 32

約数和(自身を含む): 65378880

約数和(自身を除く): 39954040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 90803, 181606, 363212, 454015, 635621, 726424, 908030, 1271242, 1816060, 2542484, 3178105, 3632120, 5084968, 6356210, 12712420, 25424840]

約数ペア:

[(1, 25424840), (2, 12712420), (4, 6356210), (5, 5084968), (7, 3632120), (8, 3178105), (10, 2542484), (14, 1816060), (20, 1271242), (28, 908030), (35, 726424), (40, 635621), (56, 454015), (70, 363212), (140, 181606), (280, 90803)]