211715560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{756127}}^1$

素因数の和:756145

約数の個数: 32

約数和(自身を含む): 544412160

約数和(自身を除く): 332696600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 756127, 1512254, 3024508, 3780635, 5292889, 6049016, 7561270, 10585778, 15122540, 21171556, 26464445, 30245080, 42343112, 52928890, 105857780, 211715560]

約数ペア:

[(1, 211715560), (2, 105857780), (4, 52928890), (5, 42343112), (7, 30245080), (8, 26464445), (10, 21171556), (14, 15122540), (20, 10585778), (28, 7561270), (35, 6049016), (40, 5292889), (56, 3780635), (70, 3024508), (140, 1512254), (280, 756127)]