206819720

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{51193}}^1$

素因数の和:51305

約数の個数: 32

約数和(自身を含む): 469960920

約数和(自身を除く): 263141200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 51193, 102386, 204772, 255965, 409544, 511930, 1023860, 2047720, 5170493, 10340986, 20681972, 25852465, 41363944, 51704930, 103409860, 206819720]

約数ペア:

[(1, 206819720), (2, 103409860), (4, 51704930), (5, 41363944), (8, 25852465), (10, 20681972), (20, 10340986), (40, 5170493), (101, 2047720), (202, 1023860), (404, 511930), (505, 409544), (808, 255965), (1010, 204772), (2020, 102386), (4040, 51193)]