20540496554

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{439}}^1\times {\mathrm{547}}^1\times {\mathrm{2251}}^1$

素因数の和:3258

約数の個数: 32

約数和(自身を含む): 32580134400

約数和(自身を除く): 12039637846

約数列:

[1, 2, 19, 38, 439, 547, 878, 1094, 2251, 4502, 8341, 10393, 16682, 20786, 42769, 85538, 240133, 480266, 988189, 1231297, 1976378, 2462594, 4562527, 9125054, 18775591, 23394643, 37551182, 46789286, 540539383, 1081078766, 10270248277, 20540496554]

約数ペア:

[(1, 20540496554), (2, 10270248277), (19, 1081078766), (38, 540539383), (439, 46789286), (547, 37551182), (878, 23394643), (1094, 18775591), (2251, 9125054), (4502, 4562527), (8341, 2462594), (10393, 1976378), (16682, 1231297), (20786, 988189), (42769, 480266), (85538, 240133)]