12908140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{673}}^1$

素因数の和:826

約数の個数: 48

約数和(自身を含む): 31252032

約数和(自身を除く): 18343892

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 137, 140, 274, 548, 673, 685, 959, 1346, 1370, 1918, 2692, 2740, 3365, 3836, 4711, 4795, 6730, 9422, 9590, 13460, 18844, 19180, 23555, 47110, 92201, 94220, 184402, 368804, 461005, 645407, 922010, 1290814, 1844020, 2581628, 3227035, 6454070, 12908140]

約数ペア:

[(1, 12908140), (2, 6454070), (4, 3227035), (5, 2581628), (7, 1844020), (10, 1290814), (14, 922010), (20, 645407), (28, 461005), (35, 368804), (70, 184402), (137, 94220), (140, 92201), (274, 47110), (548, 23555), (673, 19180), (685, 18844), (959, 13460), (1346, 9590), (1370, 9422), (1918, 6730), (2692, 4795), (2740, 4711), (3365, 3836)]