280868432

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1013}}^1$

素因数の和:1108

約数の個数: 80

約数和(自身を含む): 619627008

約数和(自身を除く): 338758576

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 43, 52, 62, 86, 104, 124, 172, 208, 248, 344, 403, 496, 559, 688, 806, 1013, 1118, 1333, 1612, 2026, 2236, 2666, 3224, 4052, 4472, 5332, 6448, 8104, 8944, 10664, 13169, 16208, 17329, 21328, 26338, 31403, 34658, 43559, 52676, 62806, 69316, 87118, 105352, 125612, 138632, 174236, 210704, 251224, 277264, 348472, 408239, 502448, 566267, 696944, 816478, 1132534, 1350329, 1632956, 2265068, 2700658, 3265912, 4530136, 5401316, 6531824, 9060272, 10802632, 17554277, 21605264, 35108554, 70217108, 140434216, 280868432]

約数ペア:

[(1, 280868432), (2, 140434216), (4, 70217108), (8, 35108554), (13, 21605264), (16, 17554277), (26, 10802632), (31, 9060272), (43, 6531824), (52, 5401316), (62, 4530136), (86, 3265912), (104, 2700658), (124, 2265068), (172, 1632956), (208, 1350329), (248, 1132534), (344, 816478), (403, 696944), (496, 566267), (559, 502448), (688, 408239), (806, 348472), (1013, 277264), (1118, 251224), (1333, 210704), (1612, 174236), (2026, 138632), (2236, 125612), (2666, 105352), (3224, 87118), (4052, 69316), (4472, 62806), (5332, 52676), (6448, 43559), (8104, 34658), (8944, 31403), (10664, 26338), (13169, 21328), (16208, 17329)]