20004868

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{293}}^1$

素因数の和:424

約数の個数: 36

約数和(自身を含む): 38414628

約数和(自身を除く): 18409760

約数列:

[1, 2, 4, 13, 26, 52, 101, 169, 202, 293, 338, 404, 586, 676, 1172, 1313, 2626, 3809, 5252, 7618, 15236, 17069, 29593, 34138, 49517, 59186, 68276, 99034, 118372, 198068, 384709, 769418, 1538836, 5001217, 10002434, 20004868]

約数ペア:

[(1, 20004868), (2, 10002434), (4, 5001217), (13, 1538836), (26, 769418), (52, 384709), (101, 198068), (169, 118372), (202, 99034), (293, 68276), (338, 59186), (404, 49517), (586, 34138), (676, 29593), (1172, 17069), (1313, 15236), (2626, 7618), (3809, 5252)]