20278544

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{8863}}^1$

素因数の和:8895

約数の個数: 40

約数和(自身を含む): 46163712

約数和(自身を除く): 25885168

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 1144, 2288, 8863, 17726, 35452, 70904, 97493, 115219, 141808, 194986, 230438, 389972, 460876, 779944, 921752, 1267409, 1559888, 1843504, 2534818, 5069636, 10139272, 20278544]

約数ペア:

[(1, 20278544), (2, 10139272), (4, 5069636), (8, 2534818), (11, 1843504), (13, 1559888), (16, 1267409), (22, 921752), (26, 779944), (44, 460876), (52, 389972), (88, 230438), (104, 194986), (143, 141808), (176, 115219), (208, 97493), (286, 70904), (572, 35452), (1144, 17726), (2288, 8863)]