161607856

素因数分解:

$2^4\times {\mathrm{251}}^1\times {\mathrm{40241}}^1$

素因数の和:40500

約数の個数: 20

約数和(自身を含む): 314370504

約数和(自身を除く): 152762648

約数列:

[1, 2, 4, 8, 16, 251, 502, 1004, 2008, 4016, 40241, 80482, 160964, 321928, 643856, 10100491, 20200982, 40401964, 80803928, 161607856]

約数ペア:

[(1, 161607856), (2, 80803928), (4, 40401964), (8, 20200982), (16, 10100491), (251, 643856), (502, 321928), (1004, 160964), (2008, 80482), (4016, 40241)]