31191520

素因数分解:

$2^5\times 5^1\times {\mathrm{383}}^1\times {\mathrm{509}}^1$

素因数の和:907

約数の個数: 48

約数和(自身を含む): 74027520

約数和(自身を除く): 42836000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 383, 509, 766, 1018, 1532, 1915, 2036, 2545, 3064, 3830, 4072, 5090, 6128, 7660, 8144, 10180, 12256, 15320, 16288, 20360, 30640, 40720, 61280, 81440, 194947, 389894, 779788, 974735, 1559576, 1949470, 3119152, 3898940, 6238304, 7797880, 15595760, 31191520]

約数ペア:

[(1, 31191520), (2, 15595760), (4, 7797880), (5, 6238304), (8, 3898940), (10, 3119152), (16, 1949470), (20, 1559576), (32, 974735), (40, 779788), (80, 389894), (160, 194947), (383, 81440), (509, 61280), (766, 40720), (1018, 30640), (1532, 20360), (1915, 16288), (2036, 15320), (2545, 12256), (3064, 10180), (3830, 8144), (4072, 7660), (5090, 6128)]