20531560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73327}}^1$

素因数の和:73345

約数の個数: 32

約数和(自身を含む): 52796160

約数和(自身を除く): 32264600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 73327, 146654, 293308, 366635, 513289, 586616, 733270, 1026578, 1466540, 2053156, 2566445, 2933080, 4106312, 5132890, 10265780, 20531560]

約数ペア:

[(1, 20531560), (2, 10265780), (4, 5132890), (5, 4106312), (7, 2933080), (8, 2566445), (10, 2053156), (14, 1466540), (20, 1026578), (28, 733270), (35, 586616), (40, 513289), (56, 366635), (70, 293308), (140, 146654), (280, 73327)]