20504428

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{337}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 42928704

約数和(自身を除く): 22424276

約数列:

[1, 2, 4, 7, 14, 28, 41, 53, 82, 106, 164, 212, 287, 337, 371, 574, 674, 742, 1148, 1348, 1484, 2173, 2359, 4346, 4718, 8692, 9436, 13817, 15211, 17861, 27634, 30422, 35722, 55268, 60844, 71444, 96719, 125027, 193438, 250054, 386876, 500108, 732301, 1464602, 2929204, 5126107, 10252214, 20504428]

約数ペア:

[(1, 20504428), (2, 10252214), (4, 5126107), (7, 2929204), (14, 1464602), (28, 732301), (41, 500108), (53, 386876), (82, 250054), (106, 193438), (164, 125027), (212, 96719), (287, 71444), (337, 60844), (371, 55268), (574, 35722), (674, 30422), (742, 27634), (1148, 17861), (1348, 15211), (1484, 13817), (2173, 9436), (2359, 8692), (4346, 4718)]