285279820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2037713}}^1$

素因数の和:2037729

約数の個数: 24

約数和(自身を含む): 684671904

約数和(自身を除く): 399392084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2037713, 4075426, 8150852, 10188565, 14263991, 20377130, 28527982, 40754260, 57055964, 71319955, 142639910, 285279820]

約数ペア:

[(1, 285279820), (2, 142639910), (4, 71319955), (5, 57055964), (7, 40754260), (10, 28527982), (14, 20377130), (20, 14263991), (28, 10188565), (35, 8150852), (70, 4075426), (140, 2037713)]