20512890836

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{643}}^1\times {\mathrm{257273}}^1$

素因数の和:257951

約数の個数: 24

約数和(自身を含む): 37113318144

約数和(自身を除く): 16600427308

約数列:

[1, 2, 4, 31, 62, 124, 643, 1286, 2572, 19933, 39866, 79732, 257273, 514546, 1029092, 7975463, 15950926, 31901852, 165426539, 330853078, 661706156, 5128222709, 10256445418, 20512890836]

約数ペア:

[(1, 20512890836), (2, 10256445418), (4, 5128222709), (31, 661706156), (62, 330853078), (124, 165426539), (643, 31901852), (1286, 15950926), (2572, 7975463), (19933, 1029092), (39866, 514546), (79732, 257273)]