81280356

素因数分解:

$2^2\times 3^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1\times {\mathrm{337}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 193065600

約数和(自身を除く): 111785244

約数列:

[1, 2, 3, 4, 6, 12, 101, 199, 202, 303, 337, 398, 404, 597, 606, 674, 796, 1011, 1194, 1212, 1348, 2022, 2388, 4044, 20099, 34037, 40198, 60297, 67063, 68074, 80396, 102111, 120594, 134126, 136148, 201189, 204222, 241188, 268252, 402378, 408444, 804756, 6773363, 13546726, 20320089, 27093452, 40640178, 81280356]

約数ペア:

[(1, 81280356), (2, 40640178), (3, 27093452), (4, 20320089), (6, 13546726), (12, 6773363), (101, 804756), (199, 408444), (202, 402378), (303, 268252), (337, 241188), (398, 204222), (404, 201189), (597, 136148), (606, 134126), (674, 120594), (796, 102111), (1011, 80396), (1194, 68074), (1212, 67063), (1348, 60297), (2022, 40198), (2388, 34037), (4044, 20099)]